Re: [PHP] Questions from a Newbie
Tamara -
Thanks.
No error_log.
This works ...
htmlbody
?php phpinfo(); ?
/body/html
Ethan
++
At 02:23 AM 10/19/2010, Tamara Temple wrote:
On Oct 18, 2010, at 11:01 PM, Ethan Rosenberg wrote:
I've added the code you suggest, and I still get a blank screen.
Should I be explicitly be using mysqli functions; eg mysqli_connect?
Odd you should still get a blank screen and nothing in the error_log...
Does phpinfo() work?
Ethan
At 11:00 PM 10/18/2010, you wrote:
Where do you set $host, $user and $password?
You should add the following after the new mysqli statement:
if ($mysqli-connect_error) {
die('Connect Error (' . $mysqli-connect_errno . ') '
. $mysqli-connect_error);
}
Tamara Temple
-- aka tamouse__
mailto:tam...@tamaratemple.comtam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 18, 2010, at 4:09 PM, Ethan Rosenberg wrote:
At 05:37 PM 10/17/2010, Tamara Temple wrote:
gah, i botched that up.
For the first part, you want the following:
$cxn = new mysql($host, $user, $password);
$res = $cxn-query(create database test22:);
if (!$res) {
die(Failed to create database test22: .
$cxn- error());
}
Then, reopen the connection with the new data base:
$cxn = new mysql($host, $user, $password, test22);
Then the following code will work.
Tamara Temple
-- aka tamouse__
mailto:tam...@tamaratemple.comtam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 17, 2010, at 4:26 PM, Tamara Temple wrote:
On Oct 17, 2010, at 1:22 PM, Ethan Rosenberg wrote:
At 01:41 AM 10/17/2010, Tommy Pham wrote:
I cannot get the following to work. In my Firefox [Iceweasel]
browser, I
enter the following URL: [w/ the http]
Whenever you get a blank screen running a php application, the
place
to look is the http server's error_log. This is frequently found
in / var/log/httpd/error_log or /var/log/apache2/error_log. (If
your
system is hosted someplace else, it could very easily be in a
different place). Typically you need root permission to read this
file. Tail the file after you run your PHP script to see the most
recent errors.
The code contained in the file CreateNew.php is:
/*
* Create Database test22
*/
htmlbody
?php
$cxn = mysqli_connect($host,$user,$password);
Better to use the OO approach:
$cxn = new mysqli($host, $user, $password);
echoCreate database test22;
Instead of echo statements (which would just echo the contents to
the output, i.e., your browser, you want to assign them to a
variable, such as:
$sql = create database test22; use test22;
Then you need to execute the sql statement:
$res = $cxn-query($sql);
if (!$res) {
die(Could not create database test22: .
$cxn- error());
}
echoCreate table Names2
$sql = create table Names2
(
RecordNum Int(11) Primary Key Not null default=1
auto_increment,
FirstName varchar(10),
LastName varchar(10),
Height decimal(4,1),
Weight0 decimal(4,1),
BMI decimal(3,1)
Date0 date
);
; // to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Names2: . $cxn- error());
}
echo Create table Visit2
$sql = create table Visit2
(
Indx Int(7) Primary Key Not null auto_increment,
Weight decimal(4,1) not null,
StudyDate date not null,
RecordNum Int(11)
);
; // again, to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Visit2: . $cxn- error());
}
$sql= SHOW DATABASES;
This doesn't work in a programmatic setting.
Terminate the database connection:
$cxn-close();
?
/body/html
I would also like to be able to add data to a table, using
PHP,
which I
can do
in MySQL as:
load data infile '/home/ethan/Databases/tester21.dat.' replace
into table
Names fields escaped by '\\' terminated by '\t' lines
terminated by '\n'
;
That's a specific feature of the mysql program. You'd have to
write
something in php to be able to parse the file and insert the data.
There are examples all over the net. Then you would need to set up
sql insert or replace statements to actually get the data into the
data base using mysqli::query. There are numerous examples of this
as well.
Here's one example:
?php
$host = localhost;
$user = root;
$pwd = rootpassword;
$db = test22;
$table = table_to_insert_into;
$cxn = new mysql($host, $user, $pwd, $db);
$filename = tab-delimited.txt;
$contents = file($filename); // returns the contents of
the file
into an array, one line of file per array
$columns = explode(\t, $contents[0]); // get the column
names
from the first line
RE: [PHP] Questions from a Newbie
-Original Message-
From: Ethan Rosenberg [mailto:eth...@earthlink.net]
Sent: Tuesday, October 19, 2010 12:05 AM
To: php-general@lists.php.net
Subject: Re: [PHP] Questions from a Newbie
Tamara -
Thanks.
No error_log.
The error log only exists if he configures it properly and the script has
error. IE: log_errors error_log. Like I said, Ethan should start from
the beginning of the manual. It covers the configuration of PHP in addition
to the fundamentals of PHP.
This works ...
htmlbody
?php phpinfo(); ?
/body/html
Ethan
++
At 02:23 AM 10/19/2010, Tamara Temple wrote:
On Oct 18, 2010, at 11:01 PM, Ethan Rosenberg wrote:
I've added the code you suggest, and I still get a blank screen.
Should I be explicitly be using mysqli functions; eg mysqli_connect?
Odd you should still get a blank screen and nothing in the error_log...
Does phpinfo() work?
Ethan
At 11:00 PM 10/18/2010, you wrote:
Where do you set $host, $user and $password?
You should add the following after the new mysqli statement:
if ($mysqli-connect_error) {
die('Connect Error (' . $mysqli-connect_errno . ') '
. $mysqli-connect_error); }
Tamara Temple
-- aka tamouse__
mailto:tam...@tamaratemple.comtam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 18, 2010, at 4:09 PM, Ethan Rosenberg wrote:
At 05:37 PM 10/17/2010, Tamara Temple wrote:
gah, i botched that up.
For the first part, you want the following:
$cxn = new mysql($host, $user, $password);
$res = $cxn-query(create database test22:);
if (!$res) {
die(Failed to create database test22: .
$cxn- error());
}
Then, reopen the connection with the new data base:
$cxn = new mysql($host, $user, $password, test22);
Then the following code will work.
Tamara Temple
-- aka tamouse__
mailto:tam...@tamaratemple.comtam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 17, 2010, at 4:26 PM, Tamara Temple wrote:
On Oct 17, 2010, at 1:22 PM, Ethan Rosenberg wrote:
At 01:41 AM 10/17/2010, Tommy Pham wrote:
I cannot get the following to work. In my Firefox
[Iceweasel]
browser, I
enter the following URL: [w/ the http]
Whenever you get a blank screen running a php application, the
place to look is the http server's error_log. This is frequently
found in / var/log/httpd/error_log or /var/log/apache2/error_log.
(If your system is hosted someplace else, it could very easily be
in a different place). Typically you need root permission to read
this file. Tail the file after you run your PHP script to see the
most recent errors.
The code contained in the file CreateNew.php is:
/*
* Create Database test22
*/
htmlbody
?php
$cxn = mysqli_connect($host,$user,$password);
Better to use the OO approach:
$cxn = new mysqli($host, $user, $password);
echoCreate database test22;
Instead of echo statements (which would just echo the contents to
the output, i.e., your browser, you want to assign them to a
variable, such as:
$sql = create database test22; use test22;
Then you need to execute the sql statement:
$res = $cxn-query($sql);
if (!$res) {
die(Could not create database test22: .
$cxn- error());
}
echoCreate table Names2
$sql = create table Names2
(
RecordNum Int(11) Primary Key Not null default=1
auto_increment,
FirstName varchar(10),
LastName varchar(10),
Height decimal(4,1),
Weight0 decimal(4,1),
BMI decimal(3,1)
Date0 date
);
; // to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Names2: . $cxn-
error());
}
echo Create table Visit2
$sql = create table Visit2
(
Indx Int(7) Primary Key Not null auto_increment,
Weight decimal(4,1) not null,
StudyDate date not null,
RecordNum Int(11)
);
; // again, to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Visit2: . $cxn-
error());
}
$sql= SHOW DATABASES;
This doesn't work in a programmatic setting.
Terminate the database connection:
$cxn-close();
?
/body/html
I would also like to be able to add data to a table, using
PHP,
which I
can do
in MySQL as:
load data infile '/home/ethan/Databases/tester21.dat.'
replace
into table
Names fields escaped by '\\' terminated by '\t' lines
terminated by '\n'
;
That's a specific feature of the mysql program. You'd have to
write something in php to be able to parse the file and insert
RE: [PHP] Questions from a Newbie
Dear List -
The error log only exists if he configures it properly and the script has
error. IE: log_errors error_log.
I already had done that prior to the post. That came from the
manual, the necessary section thereof which had been read.
Now what?
Ethan
++
At 08:31 AM 10/19/2010, Tommy Pham wrote:
-Original Message-
From: Ethan Rosenberg [mailto:eth...@earthlink.net]
Sent: Tuesday, October 19, 2010 12:05 AM
To: php-general@lists.php.net
Subject: Re: [PHP] Questions from a Newbie
Tamara -
Thanks.
No error_log.
The error log only exists if he configures it properly and the script has
error. IE: log_errors error_log. Like I said, Ethan should start from
the beginning of the manual. It covers the configuration of PHP in addition
to the fundamentals of PHP.
This works ...
htmlbody
?php phpinfo(); ?
/body/html
Ethan
++
At 02:23 AM 10/19/2010, Tamara Temple wrote:
On Oct 18, 2010, at 11:01 PM, Ethan Rosenberg wrote:
I've added the code you suggest, and I still get a blank screen.
Should I be explicitly be using mysqli functions; eg mysqli_connect?
Odd you should still get a blank screen and nothing in the error_log...
Does phpinfo() work?
Ethan
At 11:00 PM 10/18/2010, you wrote:
Where do you set $host, $user and $password?
You should add the following after the new mysqli statement:
if ($mysqli-connect_error) {
die('Connect Error (' . $mysqli-connect_errno . ') '
. $mysqli-connect_error); }
Tamara Temple
-- aka tamouse__
mailto:tam...@tamaratemple.comtam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 18, 2010, at 4:09 PM, Ethan Rosenberg wrote:
At 05:37 PM 10/17/2010, Tamara Temple wrote:
gah, i botched that up.
For the first part, you want the following:
$cxn = new mysql($host, $user, $password);
$res = $cxn-query(create database test22:);
if (!$res) {
die(Failed to create database test22: .
$cxn- error());
}
Then, reopen the connection with the new data base:
$cxn = new mysql($host, $user, $password, test22);
Then the following code will work.
Tamara Temple
-- aka tamouse__
mailto:tam...@tamaratemple.comtam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 17, 2010, at 4:26 PM, Tamara Temple wrote:
On Oct 17, 2010, at 1:22 PM, Ethan Rosenberg wrote:
At 01:41 AM 10/17/2010, Tommy Pham wrote:
I cannot get the following to work. In my Firefox
[Iceweasel]
browser, I
enter the following URL: [w/ the http]
Whenever you get a blank screen running a php application, the
place to look is the http server's error_log. This is frequently
found in / var/log/httpd/error_log or /var/log/apache2/error_log.
(If your system is hosted someplace else, it could very easily be
in a different place). Typically you need root permission to read
this file. Tail the file after you run your PHP script to see the
most recent errors.
The code contained in the file CreateNew.php is:
/*
* Create Database test22
*/
htmlbody
?php
$cxn = mysqli_connect($host,$user,$password);
Better to use the OO approach:
$cxn = new mysqli($host, $user, $password);
echoCreate database test22;
Instead of echo statements (which would just echo the contents to
the output, i.e., your browser, you want to assign them to a
variable, such as:
$sql = create database test22; use test22;
Then you need to execute the sql statement:
$res = $cxn-query($sql);
if (!$res) {
die(Could not create database test22: .
$cxn- error());
}
echoCreate table Names2
$sql = create table Names2
(
RecordNum Int(11) Primary Key Not null default=1
auto_increment,
FirstName varchar(10),
LastName varchar(10),
Height decimal(4,1),
Weight0 decimal(4,1),
BMI decimal(3,1)
Date0 date
);
; // to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Names2: . $cxn-
error());
}
echo Create table Visit2
$sql = create table Visit2
(
Indx Int(7) Primary Key Not null auto_increment,
Weight decimal(4,1) not null,
StudyDate date not null,
RecordNum Int(11)
);
; // again, to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Visit2: . $cxn-
error());
}
$sql= SHOW DATABASES;
This doesn't work in a programmatic setting.
Terminate the database connection:
$cxn-close();
?
/body/html
I would also like to be able to add data to a table, using
PHP,
which I
RE: [PHP] Questions from a Newbie - Please Help
Dear List -
I've checked the php.ini file [again] and cannot find any errors.
I wrote a PHP script to open a non-existent data base, and receive no error.
At this point, I am out of options.
Let's all look at the code, and tell me 1]where the error is and
2]any corrections or additions to the ini file.
For personal reasons, which I cannot explain in a public forum, I am
under extreme pressure to learn PHP ASAP.
Thank you.
Ethan
+++
At 08:31 AM 10/19/2010, Tommy Pham wrote:
-Original Message-
From: Ethan Rosenberg [mailto:eth...@earthlink.net]
Sent: Tuesday, October 19, 2010 12:05 AM
To: php-general@lists.php.net
Subject: Re: [PHP] Questions from a Newbie
Tamara -
Thanks.
No error_log.
The error log only exists if he configures it properly and the script has
error. IE: log_errors error_log. Like I said, Ethan should start from
the beginning of the manual. It covers the configuration of PHP in addition
to the fundamentals of PHP.
This works ...
htmlbody
?php phpinfo(); ?
/body/html
Ethan
++
At 02:23 AM 10/19/2010, Tamara Temple wrote:
On Oct 18, 2010, at 11:01 PM, Ethan Rosenberg wrote:
I've added the code you suggest, and I still get a blank screen.
Should I be explicitly be using mysqli functions; eg mysqli_connect?
Odd you should still get a blank screen and nothing in the error_log...
Does phpinfo() work?
Ethan
At 11:00 PM 10/18/2010, you wrote:
Where do you set $host, $user and $password?
You should add the following after the new mysqli statement:
if ($mysqli-connect_error) {
die('Connect Error (' . $mysqli-connect_errno . ') '
. $mysqli-connect_error); }
Tamara Temple
-- aka tamouse__
mailto:tam...@tamaratemple.comtam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 18, 2010, at 4:09 PM, Ethan Rosenberg wrote:
At 05:37 PM 10/17/2010, Tamara Temple wrote:
gah, i botched that up.
For the first part, you want the following:
$cxn = new mysql($host, $user, $password);
$res = $cxn-query(create database test22:);
if (!$res) {
die(Failed to create database test22: .
$cxn- error());
}
Then, reopen the connection with the new data base:
$cxn = new mysql($host, $user, $password, test22);
Then the following code will work.
Tamara Temple
-- aka tamouse__
mailto:tam...@tamaratemple.comtam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 17, 2010, at 4:26 PM, Tamara Temple wrote:
On Oct 17, 2010, at 1:22 PM, Ethan Rosenberg wrote:
At 01:41 AM 10/17/2010, Tommy Pham wrote:
I cannot get the following to work. In my Firefox
[Iceweasel]
browser, I
enter the following URL: [w/ the http]
Whenever you get a blank screen running a php application, the
place to look is the http server's error_log. This is frequently
found in / var/log/httpd/error_log or /var/log/apache2/error_log.
(If your system is hosted someplace else, it could very easily be
in a different place). Typically you need root permission to read
this file. Tail the file after you run your PHP script to see the
most recent errors.
The code contained in the file CreateNew.php is:
/*
* Create Database test22
*/
htmlbody
?php
$cxn = mysqli_connect($host,$user,$password);
Better to use the OO approach:
$cxn = new mysqli($host, $user, $password);
echoCreate database test22;
Instead of echo statements (which would just echo the contents to
the output, i.e., your browser, you want to assign them to a
variable, such as:
$sql = create database test22; use test22;
Then you need to execute the sql statement:
$res = $cxn-query($sql);
if (!$res) {
die(Could not create database test22: .
$cxn- error());
}
echoCreate table Names2
$sql = create table Names2
(
RecordNum Int(11) Primary Key Not null default=1
auto_increment,
FirstName varchar(10),
LastName varchar(10),
Height decimal(4,1),
Weight0 decimal(4,1),
BMI decimal(3,1)
Date0 date
);
; // to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Names2: . $cxn-
error());
}
echo Create table Visit2
$sql = create table Visit2
(
Indx Int(7) Primary Key Not null auto_increment,
Weight decimal(4,1) not null,
StudyDate date not null,
RecordNum Int(11)
);
; // again, to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Visit2: . $cxn-
error());
}
$sql= SHOW DATABASES;
This doesn't work in a programmatic
RE: [PHP] Questions from a Newbie
-Original Message- From: Ethan Rosenberg [mailto:eth...@earthlink.net] Sent: Tuesday, October 19, 2010 9:19 AM To: Tommy Pham; php-general@lists.php.net Subject: RE: [PHP] Questions from a Newbie Dear List - The error log only exists if he configures it properly and the script has error. IE: log_errors error_log. I already had done that prior to the post. That came from the manual, the necessary section thereof which had been read. Now what? Ethan ++ snip Here's what I perceive your scenario to be: 1) Connect to DB: success? If not, why not? Server problem? Network problem if everything is not on the same box? Firewall issue? Account privilege? 2) Send query to DB: success? If not, why not? Same questions as above... Did something happened after a successful connection? 3) What do I do with the success of the query? Check if it's as expected? Store it somewhere for later use? Display the results in html/xml? To achieve the above, you need to understand the fundamentals such as what a variable is and the types of variables. What control structures are (conditions, loops, etc.)... Did you read the all that I've mentioned? Since you've mentioned reading the MySQL/MySQLi section was too much for you to comprehend implies, to me, that you don't understand the fundamentals or didn't read the sections from the official manual that are required to begin working with PHP. Here's the code from OP: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); See point 1 for above. echoCreate database test22; See point 2. What's the difference between display it as text/html/xml and assigning it to use? If to use, you need to understand the fundamentals of SQL for the below statement, which is beyond the scope of this list. What database are you executing the below command for? You wouldn't know that unless you check the result. echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); See point 2. The below statement is the same as statement above in the process. echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); See point 2. $sql= SHOW DATABASES; See point 2 3 for the above. ? /body/html Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Questions from a Newbie - Please Help
thread has been trimmed to NOTHING i am pretty sure i read it on here already... but your PHP code looks wrong. ORIGNAL CODE: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html FIXED CODE: htmlbody ?php /* * Create Database test22 */ $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date );; echoCreate table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) );; $sql= SHOW DATABASES; ? /body/html END FIXX firstly... you are missing your ending ; AFTER the on most of your lines... and i've seen this before, where it wont throw the error. secondly, all this is doing, is echoing out lines to either the console, or the web page... it is not running the queries at all. So, if you're trying to execute this from a shell script, then the line starting with $cxn that created the connection to the database, is irrelevant. If you are trying to just run from the website, and show what you WANT to do, then you have to end your statements with the ; character. You should be able to copy and paste my FIXED code, and it should echo out something... it is helps, before you make the $cnx call, put in error_reporting(E_ALL); lastly, if you want to call the queries from php, then you will have to remove the echo, and make them function calls to the database... here is a VERY quick redo of your code to make the mysqli calls: htmlbody ?php /* * Create Database test22 */ $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; mysqli_query($cxn, Create table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date );); mysqli_query($cxn, Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) );); $sql= SHOW DATABASES; $result = mysqli_query($cxn, $sql); echo 'pre'; print_r($result); echo '/pre'; ? /body/html GOOD LUCK! and just to note, i dont guarantee that this code will work, i am only taking what you had, and adding a little more to it, and I didn't test it out... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Questions from a Newbie - Please Help
-Original Message- From: Steve Staples [mailto:sstap...@mnsi.net] Sent: Tuesday, October 19, 2010 11:07 AM To: Ethan Rosenberg Cc: php-general@lists.php.net Subject: RE: [PHP] Questions from a Newbie - Please Help thread has been trimmed to NOTHING i am pretty sure i read it on here already... but your PHP code looks wrong. ORIGNAL CODE: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html FIXED CODE: htmlbody ?php /* * Create Database test22 */ $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date );; echoCreate table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) );; $sql= SHOW DATABASES; ? /body/html END FIXX firstly... you are missing your ending ; AFTER the on most of your lines... and i've seen this before, where it wont throw the error. secondly, all this is doing, is echoing out lines to either the console, or the web page... it is not running the queries at all. So, if you're trying to execute this from a shell script, then the line starting with $cxn that created the connection to the database, is irrelevant. If you are trying to just run from the website, and show what you WANT to do, then you have to end your statements with the ; character. You should be able to copy and paste my FIXED code, and it should echo out something... it is helps, before you make the $cnx call, put in error_reporting(E_ALL); lastly, if you want to call the queries from php, then you will have to remove the echo, and make them function calls to the database... here is a VERY quick redo of your code to make the mysqli calls: htmlbody ?php /* * Create Database test22 */ $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; The 2 statements below would fail ;) mysqli_query($cxn, Create table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date );); mysqli_query($cxn, Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) );); $sql= SHOW DATABASES; $result = mysqli_query($cxn, $sql); echo 'pre'; print_r($result); echo '/pre'; ? /body/html GOOD LUCK! and just to note, i dont guarantee that this code will work, i am only taking what you had, and adding a little more to it, and I didn't test it out... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Questions from a Newbie - Please Help
On Tue, 2010-10-19 at 11:18 -0700, Tommy Pham wrote: -Original Message- From: Steve Staples [mailto:sstap...@mnsi.net] Sent: Tuesday, October 19, 2010 11:07 AM To: Ethan Rosenberg Cc: php-general@lists.php.net Subject: RE: [PHP] Questions from a Newbie - Please Help thread has been trimmed to NOTHING i am pretty sure i read it on here already... but your PHP code looks wrong. ORIGNAL CODE: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html FIXED CODE: htmlbody ?php /* * Create Database test22 */ $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date );; echoCreate table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) );; $sql= SHOW DATABASES; ? /body/html END FIXX firstly... you are missing your ending ; AFTER the on most of your lines... and i've seen this before, where it wont throw the error. secondly, all this is doing, is echoing out lines to either the console, or the web page... it is not running the queries at all. So, if you're trying to execute this from a shell script, then the line starting with $cxn that created the connection to the database, is irrelevant. If you are trying to just run from the website, and show what you WANT to do, then you have to end your statements with the ; character. You should be able to copy and paste my FIXED code, and it should echo out something... it is helps, before you make the $cnx call, put in error_reporting(E_ALL); lastly, if you want to call the queries from php, then you will have to remove the echo, and make them function calls to the database... here is a VERY quick redo of your code to make the mysqli calls: htmlbody ?php /* * Create Database test22 */ $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; The 2 statements below would fail ;) ACUTALLY... the only reason they fail, is becuase i didn't realize that I kept the other echo above, and it didn't create the database... that should have been: mysqli_query($cxn, Create database test22); and then inside, creating the table Names2 needs to be test22.Names2 and the same for visit2. the other issue, is with the create Names2... where the primary key is default=1000 (should be default 1000), and auto_increment... can't have a default AND auto_increment. other than those, this works fine... providing he has the $user, $host, $password declared as well. I personally dont use this, i use the PEAR:MDB2 classes, so this was just a quick php.net search... WHICH would have helped the OP on this one. http://ca.php.net/manual/en/mysqli.query.php I hate to say it, since i was a noob once, but RTFM, or LRN2GOOGLE and you will find it easier, and then once you can't understand it, ask. but there was so much fail in the OP's code. sorry. I think the scary part, is that you're being forced to learn PHP to develop in, and you can't figure out a simple echo statement? Steve mysqli_query($cxn, Create table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date );); mysqli_query($cxn, Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) );); $sql= SHOW DATABASES; $result = mysqli_query($cxn, $sql); echo 'pre'; print_r($result); echo '/pre'; ? /body/html GOOD LUCK! and just to note, i dont guarantee that this code will work, i am only taking what you had, and adding a little more
RE: [PHP] Questions from a Newbie - Please Help
-Original Message- From: Steve Staples [mailto:sstap...@mnsi.net] Sent: Tuesday, October 19, 2010 11:51 AM To: php-general Subject: RE: [PHP] Questions from a Newbie - Please Help On Tue, 2010-10-19 at 11:18 -0700, Tommy Pham wrote: -Original Message- From: Steve Staples [mailto:sstap...@mnsi.net] Sent: Tuesday, October 19, 2010 11:07 AM To: Ethan Rosenberg Cc: php-general@lists.php.net Subject: RE: [PHP] Questions from a Newbie - Please Help thread has been trimmed to NOTHING i am pretty sure i read it on here already... but your PHP code looks wrong. ORIGNAL CODE: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html FIXED CODE: htmlbody ?php /* * Create Database test22 */ $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date );; echoCreate table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) );; $sql= SHOW DATABASES; ? /body/html END FIXX firstly... you are missing your ending ; AFTER the on most of your lines... and i've seen this before, where it wont throw the error. secondly, all this is doing, is echoing out lines to either the console, or the web page... it is not running the queries at all. So, if you're trying to execute this from a shell script, then the line starting with $cxn that created the connection to the database, is irrelevant. If you are trying to just run from the website, and show what you WANT to do, then you have to end your statements with the ; character. You should be able to copy and paste my FIXED code, and it should echo out something... it is helps, before you make the $cnx call, put in error_reporting(E_ALL); lastly, if you want to call the queries from php, then you will have to remove the echo, and make them function calls to the database... here is a VERY quick redo of your code to make the mysqli calls: htmlbody ?php /* * Create Database test22 */ $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; The 2 statements below would fail ;) ACUTALLY... the only reason they fail, is becuase i didn't realize that I kept the other echo above, and it didn't create the database... that should have been: mysqli_query($cxn, Create database test22); and then inside, creating the table Names2 needs to be test22.Names2 and the same for visit2. the other issue, is with the create Names2... where the primary key is default=1000 (should be default 1000), and auto_increment... can't have a default AND auto_increment. other than those, this works fine... providing he has the $user, $host, $password declared as well. I personally dont use this, i use the PEAR:MDB2 classes, so this was just a quick php.net search... WHICH would have helped the OP on this one. http://ca.php.net/manual/en/mysqli.query.php I hate to say it, since i was a noob once, but RTFM, or LRN2GOOGLE and you will find it easier, and then once you can't understand it, ask. but there was so much fail in the OP's code. sorry. I think the scary part, is that you're being forced to learn PHP to develop in, and you can't figure out a simple echo statement? Steve I did point out MySQLi section in the manual but he said it was too much for him to comprehend. And from the codes he provided, he lacked the basic knowledge of PHP. Thus, he shouldn't even consider doing anything else, much less accessing the DB as there are more complications arise other than just PHP syntax error. mysqli_query($cxn, Create table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10
RE: [PHP] Questions from a Newbie
-Original Message- From: Paul M Foster [mailto:pa...@quillandmouse.com] Sent: Sunday, October 17, 2010 9:46 PM To: php-general@lists.php.net Subject: Re: [PHP] Questions from a Newbie On Sun, Oct 17, 2010 at 01:00:44AM -0400, Ethan Rosenberg wrote: Dear List - Here are some questions, which I am sure are trivial, but I am a newbie, and cannot find the answers online I cannot get the following to work. In my Firefox [Iceweasel] browser, I enter the following URL: [w/ the http] localhost/CreateNew.php All I get is a blank browser screen. The code contained in the file CreateNew.php is: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 There's no need to quote $host above. Why your echo statements aren't showing up possibly indicates the script is aborting before it gets to them. In situations like this, check the error logs if possible. If not, break the problem down into even smaller chunks. Do your connect with MySQL and then test to see if the connection actually worked. According to the docs, mysqli_connect() should return an object representing the connection. So check that first: if (!is_object($cxn)) echo Not connected!; else echo Yep, it connected!; ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); As has been mentioned, you're simply echoing these to the page, not sending them to MySQL. That won't work. You have to feed your SQL statements to the mysqli_query() function. See the docs. Also, let me strongly advise you against using upper-and-lower-case field names in your tables. Others will undoubtedly disagree, but I find this a maintenance nightmare in the long run. Note that in some SQL variants (maybe in MySQL as well; I don't recall), you must quote the field names in queries to preserve their case and make the queries work. echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; As mentioned elsewhere, this statement won't work in a web context. It only works from the MySQL console interface. There are other ways to achieve this in a programming context, but they involve querying the MySQL meta-tables. Also, to those recommending PHPMyAdmin, it ignores the OP's question, and doesn't help him/her learn anything. It is completely possible to do what he wants programmatically, and often is done that way while installing various frameworks, etc. *You're* welcome to use PHPMyAdmin, but let the OP do it his/her way, and help them along if you can. Paul -- Paul M. Foster I recommended phpMyAdmin because I thought that he wanted to manage the database using PHP. Anyway, he lacked the fundamental understanding of PHP and wanted to get into more advanced stuff. As for what he intends in OP, the statements will work provided that the MySQL account has the proper privileges to do so and if the MySQL server is configured with 'show databases' enabled. Either case, he won't know for sure if those statements executed correctly unless he understood the PHP fundamentals and use conditions to check the results of each individual statement execution. That's why I recommended him to read the manual from the beginning to get the fundamentals because reading that MySQL section in the manual was too much for him. Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Questions from a Newbie
Ethan,you have the end of line semi colons enclosed in double quotes..move them to the true end of line. On 17/10/10 04:45, Christian Heinrich wrote: Am Sonntag, den 17.10.2010, 01:00 -0400 schrieb Ethan Rosenberg: Dear List - Here are some questions, which I am sure are trivial, but I am a newbie, and cannot find the answers online I cannot get the following to work. In my Firefox [Iceweasel] browser, I enter the following URL: [w/ the http] localhost/CreateNew.php All I get is a blank browser screen. The code contained in the file CreateNew.php is: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html If I search for test22 or Visit2, nothing is found. I would also like to be able to add data to a table, using PHP, which I can do in MySQL as: load data infile '/home/ethan/Databases/tester21.dat.' replace into table Names fields escaped by '\\' terminated by '\t' lines terminated by '\n' ; Thanks in advance. Ethan === Using Debian(sid) Hi, maybe you also want to take a look at PDO - http://php.net/pdo Regards Christian -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Questions from a Newbie
Am Sonntag, den 17.10.2010, 01:00 -0400 schrieb Ethan Rosenberg: Dear List - Here are some questions, which I am sure are trivial, but I am a newbie, and cannot find the answers online I cannot get the following to work. In my Firefox [Iceweasel] browser, I enter the following URL: [w/ the http] localhost/CreateNew.php All I get is a blank browser screen. The code contained in the file CreateNew.php is: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html If I search for test22 or Visit2, nothing is found. I would also like to be able to add data to a table, using PHP, which I can do in MySQL as: load data infile '/home/ethan/Databases/tester21.dat.' replace into table Names fields escaped by '\\' terminated by '\t' lines terminated by '\n' ; Thanks in advance. Ethan === Using Debian(sid) Hi, maybe you also want to take a look at PDO - http://php.net/pdo Regards Christian -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Questions from a Newbie
-Original Message- From: Alexis [mailto:phplis...@antonakis.co.uk] Sent: Sunday, October 17, 2010 4:10 AM To: php-general@lists.php.net Subject: Re: [PHP] Questions from a Newbie Ethan,you have the end of line semi colons enclosed in double quotes..move them to the true end of line. Even if he does move the semicolons to outside the quote, it doesn't do what he intended as maintaining the database. His code merely echo the SQL syntax for viewing and not actually executing the SQL syntax, which is what I think he intended. In which case, he's better off using phpMyAdmin. Regards, Tommy On 17/10/10 04:45, Christian Heinrich wrote: Am Sonntag, den 17.10.2010, 01:00 -0400 schrieb Ethan Rosenberg: Dear List - Here are some questions, which I am sure are trivial, but I am a newbie, and cannot find the answers online I cannot get the following to work. In my Firefox [Iceweasel] browser, I enter the following URL: [w/ the http] localhost/CreateNew.php All I get is a blank browser screen. The code contained in the file CreateNew.php is: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html If I search for test22 or Visit2, nothing is found. I would also like to be able to add data to a table, using PHP, which I can do in MySQL as: load data infile '/home/ethan/Databases/tester21.dat.' replace into table Names fields escaped by '\\' terminated by '\t' lines terminated by '\n' ; Thanks in advance. Ethan === Using Debian(sid) Hi, maybe you also want to take a look at PDO - http://php.net/pdo Regards Christian -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Questions from a Newbie
At 01:41 AM 10/17/2010, Tommy Pham wrote: -Original Message- From: Ethan Rosenberg [mailto:eth...@earthlink.net] Sent: Saturday, October 16, 2010 10:01 PM To: php-general@lists.php.net Subject: [PHP] Questions from a Newbie Dear List - Here are some questions, which I am sure are trivial, but I am a newbie, and cannot find the answers online I cannot get the following to work. In my Firefox [Iceweasel] browser, I enter the following URL: [w/ the http] localhost/CreateNew.php All I get is a blank browser screen. The code contained in the file CreateNew.php is: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html If I search for test22 or Visit2, nothing is found. I would also like to be able to add data to a table, using PHP, which I can do in MySQL as: load data infile '/home/ethan/Databases/tester21.dat.' replace into table Names fields escaped by '\\' terminated by '\t' lines terminated by '\n' ; Thanks in advance. Ethan === Using Debian(sid) You're reinventing the wheel that's been rolling along very smoothly for a long time... Google 'phpmyadmin'. Also, read this entire section [1]. Regards, Tommy [1] http://www.php.net/manual/en/book.mysqli.php Tommy - Thanks. As I stated, I am a newbie. 1] I am trying to shorten the learning curve by asking some questions, which I understand are probably trivial. A whole MySQLi list of functions at this point is to much for me. I have to break the problem into manageable parts. 2] It has been my experience that using a GUI does not teach the whole subject. Linux, which is the OS I use cannot be run from a GUI. In the code being discussed, I wish to create a database and add two tables. I also note a MySQL statement that can be used to add data to an existing table, and wish to be able to execute this statement using PHP. So, therefore.. Let us try to answer the following two(2) questions: a] What changes [other than moving the simicolons] have to be made to correct the code. b] What books can you suggest to help w/ MySQL and PHP? I already have the SQL, MySQL PHP, and HTML books in the . for Dummies series. I need something with a little more depth and detail. Thanks to all for your excellent help. Ethan Using Debian(sid) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Questions from a Newbie
Linux can be run as a GUI, using a window manager. Aside from that, have a look at the manual pages on php.net, which give some good examples of how to use the various mysql functions. Also, on your development machine, its a good idea to turn on errors, as it can indicate where these problems are. You can do this from the php.ini, look for display_errors. Thanks, Ash http://www.ashleysheridan.co.uk - Reply message - From: Ethan Rosenberg eth...@earthlink.net Date: Sun, Oct 17, 2010 19:22 Subject: [PHP] Questions from a Newbie To: Tommy Pham tommy...@gmail.com, php-general@lists.php.net At 01:41 AM 10/17/2010, Tommy Pham wrote: -Original Message- From: Ethan Rosenberg [mailto:eth...@earthlink.net] Sent: Saturday, October 16, 2010 10:01 PM To: php-general@lists.php.net Subject: [PHP] Questions from a Newbie Dear List - Here are some questions, which I am sure are trivial, but I am a newbie, and cannot find the answers online I cannot get the following to work. In my Firefox [Iceweasel] browser, I enter the following URL: [w/ the http] localhost/CreateNew.php All I get is a blank browser screen. The code contained in the file CreateNew.php is: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html If I search for test22 or Visit2, nothing is found. I would also like to be able to add data to a table, using PHP, which I can do in MySQL as: load data infile '/home/ethan/Databases/tester21.dat.' replace into table Names fields escaped by '\\' terminated by '\t' lines terminated by '\n' ; Thanks in advance. Ethan === Using Debian(sid) You're reinventing the wheel that's been rolling along very smoothly for a long time... Google 'phpmyadmin'. Also, read this entire section [1]. Regards, Tommy [1] http://www.php.net/manual/en/book.mysqli.php Tommy - Thanks. As I stated, I am a newbie. 1] I am trying to shorten the learning curve by asking some questions, which I understand are probably trivial. A whole MySQLi list of functions at this point is to much for me. I have to break the problem into manageable parts. 2] It has been my experience that using a GUI does not teach the whole subject. Linux, which is the OS I use cannot be run from a GUI. In the code being discussed, I wish to create a database and add two tables. I also note a MySQL statement that can be used to add data to an existing table, and wish to be able to execute this statement using PHP. So, therefore.. Let us try to answer the following two(2) questions: a] What changes [other than moving the simicolons] have to be made to correct the code. b] What books can you suggest to help w/ MySQL and PHP? I already have the SQL, MySQL PHP, and HTML books in the . for Dummies series. I need something with a little more depth and detail. Thanks to all for your excellent help. Ethan Using Debian(sid) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Questions from a Newbie
On Oct 17, 2010, at 1:22 PM, Ethan Rosenberg wrote:
At 01:41 AM 10/17/2010, Tommy Pham wrote:
I cannot get the following to work. In my Firefox [Iceweasel]
browser, I
enter the following URL: [w/ the http]
Whenever you get a blank screen running a php application, the place
to look is the http server's error_log. This is frequently found in /
var/log/httpd/error_log or /var/log/apache2/error_log. (If your system
is hosted someplace else, it could very easily be in a different
place). Typically you need root permission to read this file. Tail the
file after you run your PHP script to see the most recent errors.
The code contained in the file CreateNew.php is:
/*
* Create Database test22
*/
htmlbody
?php
$cxn = mysqli_connect($host,$user,$password);
Better to use the OO approach:
$cxn = new mysqli($host, $user, $password);
echoCreate database test22;
Instead of echo statements (which would just echo the contents to the
output, i.e., your browser, you want to assign them to a variable,
such as:
$sql = create database test22; use test22;
Then you need to execute the sql statement:
$res = $cxn-query($sql);
if (!$res) {
die(Could not create database test22: . $cxn-error());
}
echoCreate table Names2
$sql = create table Names2
(
RecordNum Int(11) Primary Key Not null default=1
auto_increment,
FirstName varchar(10),
LastName varchar(10),
Height decimal(4,1),
Weight0 decimal(4,1),
BMI decimal(3,1)
Date0 date
);
; // to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Names2: . $cxn-error());
}
echo Create table Visit2
$sql = create table Visit2
(
Indx Int(7) Primary Key Not null auto_increment,
Weight decimal(4,1) not null,
StudyDate date not null,
RecordNum Int(11)
);
; // again, to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Visit2: . $cxn-error());
}
$sql= SHOW DATABASES;
This doesn't work in a programmatic setting.
Terminate the database connection:
$cxn-close();
?
/body/html
I would also like to be able to add data to a table, using PHP,
which I
can do
in MySQL as:
load data infile '/home/ethan/Databases/tester21.dat.' replace
into table
Names fields escaped by '\\' terminated by '\t' lines terminated
by '\n'
;
That's a specific feature of the mysql program. You'd have to write
something in php to be able to parse the file and insert the data.
There are examples all over the net. Then you would need to set up sql
insert or replace statements to actually get the data into the data
base using mysqli::query. There are numerous examples of this as well.
Here's one example:
?php
$host = localhost;
$user = root;
$pwd = rootpassword;
$db = test22;
$table = table_to_insert_into;
$cxn = new mysql($host, $user, $pwd, $db);
$filename = tab-delimited.txt;
$contents = file($filename); // returns the contents of the file into
an array, one line of file per array
$columns = explode(\t, $contents[0]); // get the column names from
the first line of the file
$sql = insert into $table set ;
for ($i=1; $icount($contents) ; $i++) {
$data = explode(\t, $contents[$i]);
$j = 0;
foreach ($columns as $column) {
$insertdata[] = $column=' . $cxn-real_escape_string($data[$j+
+]) . '; // this assumes the column names in the tsv file match the
column names in your data base table exactly. It also assumes that all
your data are strings, not numerics.
}
$sql .= implode(,,$insertdata);
$res = $cxn-query($sql);
if (!res) die (Error inserting data: . $cxn-error());
}
?
htmlheadtitleImported data/title/head
body
pData just imported:/p
table border=1 cellpadding=2px cellspacing=2px
thead
tr style=color: white; background-color: black; text-align: center
?
$res = $cxn-query(select * from $table limit 1); // get one row
from table for generating column names
if (!res) die (Query failed for table $table: . $cxn-error());
$row = $res-fetch_assoc();
foreach ($row as $column = $value) {
echo th . $column . /th;
}
?
/tr
/thead
tbody
?
$res = $cxn-query(select * from $table);
if (!res) die (Query failed for table $table: . $cxn-error());
while ($row = $res-fetch_assoc()) {
echo tr;
foreach ($row as $column = $value) {
echo td . $value . /td;
}
echo /tr\n;
Re: [PHP] Questions from a Newbie
gah, i botched that up.
For the first part, you want the following:
$cxn = new mysql($host, $user, $password);
$res = $cxn-query(create database test22:);
if (!$res) {
die(Failed to create database test22: . $cxn-error());
}
Then, reopen the connection with the new data base:
$cxn = new mysql($host, $user, $password, test22);
Then the following code will work.
Tamara Temple
-- aka tamouse__
tam...@tamaratemple.com
May you never see a stranger's face in the mirror.
On Oct 17, 2010, at 4:26 PM, Tamara Temple wrote:
On Oct 17, 2010, at 1:22 PM, Ethan Rosenberg wrote:
At 01:41 AM 10/17/2010, Tommy Pham wrote:
I cannot get the following to work. In my Firefox [Iceweasel]
browser, I
enter the following URL: [w/ the http]
Whenever you get a blank screen running a php application, the place
to look is the http server's error_log. This is frequently found in /
var/log/httpd/error_log or /var/log/apache2/error_log. (If your
system is hosted someplace else, it could very easily be in a
different place). Typically you need root permission to read this
file. Tail the file after you run your PHP script to see the most
recent errors.
The code contained in the file CreateNew.php is:
/*
* Create Database test22
*/
htmlbody
?php
$cxn = mysqli_connect($host,$user,$password);
Better to use the OO approach:
$cxn = new mysqli($host, $user, $password);
echoCreate database test22;
Instead of echo statements (which would just echo the contents to
the output, i.e., your browser, you want to assign them to a
variable, such as:
$sql = create database test22; use test22;
Then you need to execute the sql statement:
$res = $cxn-query($sql);
if (!$res) {
die(Could not create database test22: . $cxn-error());
}
echoCreate table Names2
$sql = create table Names2
(
RecordNum Int(11) Primary Key Not null default=1
auto_increment,
FirstName varchar(10),
LastName varchar(10),
Height decimal(4,1),
Weight0 decimal(4,1),
BMI decimal(3,1)
Date0 date
);
; // to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Names2: . $cxn-error());
}
echo Create table Visit2
$sql = create table Visit2
(
Indx Int(7) Primary Key Not null auto_increment,
Weight decimal(4,1) not null,
StudyDate date not null,
RecordNum Int(11)
);
; // again, to close off the php statement
$res = $cxn-query($sql);
if (!$res) {
die(Could not create table Visit2: . $cxn-error());
}
$sql= SHOW DATABASES;
This doesn't work in a programmatic setting.
Terminate the database connection:
$cxn-close();
?
/body/html
I would also like to be able to add data to a table, using PHP,
which I
can do
in MySQL as:
load data infile '/home/ethan/Databases/tester21.dat.' replace
into table
Names fields escaped by '\\' terminated by '\t' lines
terminated by '\n'
;
That's a specific feature of the mysql program. You'd have to write
something in php to be able to parse the file and insert the data.
There are examples all over the net. Then you would need to set up
sql insert or replace statements to actually get the data into the
data base using mysqli::query. There are numerous examples of this
as well.
Here's one example:
?php
$host = localhost;
$user = root;
$pwd = rootpassword;
$db = test22;
$table = table_to_insert_into;
$cxn = new mysql($host, $user, $pwd, $db);
$filename = tab-delimited.txt;
$contents = file($filename); // returns the contents of the file
into an array, one line of file per array
$columns = explode(\t, $contents[0]); // get the column names
from the first line of the file
$sql = insert into $table set ;
for ($i=1; $icount($contents) ; $i++) {
$data = explode(\t, $contents[$i]);
$j = 0;
foreach ($columns as $column) {
$insertdata[] = $column=' . $cxn-real_escape_string($data[$j+
+]) . '; // this assumes the column names in the tsv file match
the column names in your data base table exactly. It also assumes
that all your data are strings, not numerics.
}
$sql .= implode(,,$insertdata);
$res = $cxn-query($sql);
if (!res) die (Error inserting data: . $cxn-error());
}
?
htmlheadtitleImported data/title/head
body
pData just imported:/p
table border=1 cellpadding=2px cellspacing=2px
thead
tr style=color: white; background-color: black; text-align: center
?
$res = $cxn-query(select * from $table limit 1); // get one row
from
Re: [PHP] Questions from a Newbie
On Sun, Oct 17, 2010 at 11:22 AM, Ethan Rosenberg eth...@earthlink.net wrote: snip Tommy - Thanks. As I stated, I am a newbie. 1] I am trying to shorten the learning curve by asking some questions, which I understand are probably trivial. A whole MySQLi list of functions at this point is to much for me. I have to break the problem into manageable parts. 2] It has been my experience that using a GUI does not teach the whole subject. Linux, which is the OS I use cannot be run from a GUI. In the code being discussed, I wish to create a database and add two tables. I also note a MySQL statement that can be used to add data to an existing table, and wish to be able to execute this statement using PHP. So, therefore.. Let us try to answer the following two(2) questions: a] What changes [other than moving the simicolons] have to be made to correct the code. That's why I suggested you to read that section regarding the usage of PHP's MySQL extension. If you still have problems understanding that section or if it's a bit too much, I strongly suggest you start reading the manual from the beginning. It's obvious you're not very clear on the syntax of PHP and you jumped right into the middle of accessing the database and try to manipulate the DB using PHP. What you need to know is the fundamentals 1st: variable declarations and assignments, types of variables, basic outputs (such as echo, print, etc), conditions, loops, etc... In the official manual, all of that is covered up to Classes Objects, not including. Class Objects and there after are for more of PHP5+ and OOP. When in doubt, there is always the function reference. b] What books can you suggest to help w/ MySQL and PHP? I already have the SQL, MySQL PHP, and HTML books in the . for Dummies series. I need something with a little more depth and detail. If you intend to use PHP to access the a DBMS, you need to have a strong grasp of fundamentals of SQL. I mean that as beyond a simple select statement. If you already have that and the fundamentals of PHP, reading that MySQL section I mentioned should give you the understanding you needed on how to use PHP to access and manipulate the data from the DB. One good way to learn to copy the sample codes from the manual and run it on your development box. Make some changes to code after the 1st few runs to see if you're understanding it correctly and that you should be getting the output from the code change as you expected based on your understanding of the material you just read. Reading any books (hard copy or electronic version) are good but you won't truly understand and remember how it works unless you apply that knowledge ASAP, IMO. Learning for me is reverse engineering. That's the fastest way I learn. Thanks to all for your excellent help. Ethan Using Debian(sid) Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Questions from a Newbie
On Sun, Oct 17, 2010 at 01:00:44AM -0400, Ethan Rosenberg wrote: Dear List - Here are some questions, which I am sure are trivial, but I am a newbie, and cannot find the answers online I cannot get the following to work. In my Firefox [Iceweasel] browser, I enter the following URL: [w/ the http] localhost/CreateNew.php All I get is a blank browser screen. The code contained in the file CreateNew.php is: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 There's no need to quote $host above. Why your echo statements aren't showing up possibly indicates the script is aborting before it gets to them. In situations like this, check the error logs if possible. If not, break the problem down into even smaller chunks. Do your connect with MySQL and then test to see if the connection actually worked. According to the docs, mysqli_connect() should return an object representing the connection. So check that first: if (!is_object($cxn)) echo Not connected!; else echo Yep, it connected!; ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); As has been mentioned, you're simply echoing these to the page, not sending them to MySQL. That won't work. You have to feed your SQL statements to the mysqli_query() function. See the docs. Also, let me strongly advise you against using upper-and-lower-case field names in your tables. Others will undoubtedly disagree, but I find this a maintenance nightmare in the long run. Note that in some SQL variants (maybe in MySQL as well; I don't recall), you must quote the field names in queries to preserve their case and make the queries work. echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; As mentioned elsewhere, this statement won't work in a web context. It only works from the MySQL console interface. There are other ways to achieve this in a programming context, but they involve querying the MySQL meta-tables. Also, to those recommending PHPMyAdmin, it ignores the OP's question, and doesn't help him/her learn anything. It is completely possible to do what he wants programmatically, and often is done that way while installing various frameworks, etc. *You're* welcome to use PHPMyAdmin, but let the OP do it his/her way, and help them along if you can. Paul -- Paul M. Foster -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Questions from a Newbie
-Original Message- From: Ethan Rosenberg [mailto:eth...@earthlink.net] Sent: Saturday, October 16, 2010 10:01 PM To: php-general@lists.php.net Subject: [PHP] Questions from a Newbie Dear List - Here are some questions, which I am sure are trivial, but I am a newbie, and cannot find the answers online I cannot get the following to work. In my Firefox [Iceweasel] browser, I enter the following URL: [w/ the http] localhost/CreateNew.php All I get is a blank browser screen. The code contained in the file CreateNew.php is: /* * Create Database test22 */ htmlbody ?php $cxn = mysqli_connect($host,$user,$password); echoCreate database test22; echoCreate table Names2 ( RecordNum Int(11) Primary Key Not null default=1 auto_increment, FirstName varchar(10), LastName varchar(10), Height decimal(4,1), Weight0 decimal(4,1), BMI decimal(3,1) Date0 date ); echo Create table Visit2 ( Indx Int(7) Primary Key Not null auto_increment, Weight decimal(4,1) not null, StudyDate date not null, RecordNum Int(11) ); $sql= SHOW DATABASES; ? /body/html If I search for test22 or Visit2, nothing is found. I would also like to be able to add data to a table, using PHP, which I can do in MySQL as: load data infile '/home/ethan/Databases/tester21.dat.' replace into table Names fields escaped by '\\' terminated by '\t' lines terminated by '\n' ; Thanks in advance. Ethan === Using Debian(sid) You're reinventing the wheel that's been rolling along very smoothly for a long time... Google 'phpmyadmin'. Also, read this entire section [1]. Regards, Tommy [1] http://www.php.net/manual/en/book.mysqli.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
