On Thursday, June 27, 2002, at 12:48 PM, Shane wrote:
> I would like your opinions on the best way to implement an "Are You
> Sure You Want To Do This?" dialog for an Admin user when they go to
> delete a record in a DB.
>
> Do you find that a whole page is usually required for this, or does
n't say that
> links/urls shouldn't be formatted like the first example above...
I think it is okay as long as you are staying within the same virtual
host.
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To
s you have, re-extract the
tarballs, totally. Not just for the modules but for Apache too. It's
just easier unless you have customized code in your Apache source tree.
Erik
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rs can provide a script (SUID) that allows a
user to change the group association of the file to that of the web
server? Yet without making the user a part of the group itself,
otherwise all users would be able to see all of these files...
Erik
Erik Price
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insert;
> }
> my probleme is in some case $lastname="" is true and other case is
> false.
> I tried with $lastname=" " but no change. how can I check if a varible
> is
> empty or not?
http://www.php.net/empty
Erik Price
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7;s group association to
"websecret", you probably need to be either root or a member of
"websecret", unless the system admins have provided some kind of script
that does this on your behalf. Which means that anyone else who has
this ability can read the file too (since
l=php-general&m=102503848224300&w=2
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web server user and the web server user can read
all those files.
Erik
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o use JavaScript to set a cookie, and/or make
a new request with GET or POST data attached. If not, let me know.
Erik
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On Monday, July 1, 2002, at 11:09 AM, BB wrote:
> OK, this is a 3x3 table pasted in from word!
It is against the rules to post HTML code generated by Microsoft Word.
Erik
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which one and how do I use it?
I'm assuming you mean sending some querystring data, like
header("Location: http://domain.com/page.php?data=contents";);
if so, then yes, you will end up with the string 'contents' in a
variable called $_GET['data'] .
Erik
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mp;" sign AND a "number with more than 1 digit"
If you only want it to match if there is BOTH an "&" sign AND a "number
with more than 1 digit", it should be like this:
preg_match('/siteUserList.cgi\?group=site177(&\d\d+)?/', $QUERY_STRING)
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e enters the same "name" value twice,
too. But it's not really a big deal unless you're doing a lot of work
with a lot of data.
Erik
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te line
breaks for your server? In some cases, a file may have DOS/Windows or
Macintosh line breaks which are not \n but rather \r\n and \r
respectively IIRC.
Erik
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an upgrade you can use as a
guide if you want.
Erik
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body of a
script, but if you can wrap everything into smaller scopes, it's not
such a big deal. IMHO. This applies to a lot of variable names, in
fact. But I agree, in the main body of the script (global scope) it is
best to be descriptive.
Erik
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tup...
even filenames are valuable to maleficants.
I recommend setting your php.ini to E_NONE and then putting
error_reporting(E_ALL) at the top of each of your scripts, and then when
the file is migrated to production, comment or remove the line.
Erik
Erik Price
Web Developer
globals? I had to retool all of my
> scripts. =/
IMHO you're better off, but yes, if you set register_globals = on then
you shouldn't need to have retooled your scripts. Did you restart your
webserver after you adjusted php.ini?
Erik
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quot;intranet", as
they call it, so is not really public, so I feel okay about doing dev
work on it. I'm also kind of an amateur.)
Erik
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commands. But all is not lost. You can have the cron
job execute a shell script that executes lynx or links or wget, or even
just executes the command directly from the cron job, and have that
lynx/links/wget request a PHP script that does what you want done.
Erik
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ly write a Perl script (most hosts have Perl)
to do whatever it is that needs to be done and have cron execute that,
this saves you from a whole window of exploit (the web server). But if
you don't have Perl or don't know Perl, that's a problem.
Good luck,
Erik
E
e PCRE regex syntax, this should do it:
$output = preg_replace('!^\${1,2}\w+$!', "$1", $var);
because "\w" is the same as "[A-Za-z0-9_]" (though perhaps it is in
POSIX regexes too).
Erik
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parameters, and
// set the variables from the file to
// their corresponding values
foreach ($this->parameters as $key => $value) {
$template_name = '[' . $key . ']';
$this->finalOut
case why not pay an ISP to host your own server?).
Erik
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ne giant script.
But one thing I have learned is that everyone has a different approach
to writing code, and objects may not be your thing -- that's okay.
Erik
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rgon File so maybe
it's OT but I'm curious.
Erik
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It's not
-secure-, since anyone can remove this flag (even if you used POST), but
it will work for Joe User to stop him from accidentally resubmitting.
Erik
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mplement this yourself with
database-managed persistence (but beware the overhead).
Erik
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g a tiny bit extra memory to deal with
the array:
$arr = array();
foreach ($_POST as $key => $val) {
$arr[] = $key . '=' . $val;
}
$str = implode('&', $arr);
Erik
Erik Price
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ed or slashed?
Turn off magic_quotes and do addslashes() explicitly every time you do a
database insert. Then make sure you always stripslash() data returned
from a database query.
magic_quotes is convenient for newbies, but after a while you'll find it
only trips you up, as you've discover
d/strip a requirement, not a security precaution.
Erik
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data on each iteration
while ($row = mysql_fetch_assoc($result)) {
echo $row_RsSingStanDailybb['DailyBB'];
}
Erik
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.htaccess file can be used. (This is
assuming you are using Apache.)
Go to www.apache.org and read the httpd documentation there for more
information about setting up the document root in httpd.conf.
Erik
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ter class. It represents
any *one* of the contained characters. But not more than one. So there
is no following at all, since for all intents and purposes the character
class matches a single character (unless you use a qualifier like +, ?,
or *).
Erik
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$rest_of_number = $matches[2][0];
Try that, but it's untested.
Erik
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Hello,
I am having a problem testing out the use of cookies. I'm using a
tutorial from Wrox's "Beginning PHP4". It seems that I'm doing
everything correctly, but when I try to access the page in my browser, I
am not prompted as to whether or not I'd like to accept a cookie (which
is somethi
Good advice -- I hadn't thought of that (echoing right beneath the
setcookie() function). But then i thought of something else... how can
I echo text before the "" tag? So I put a third setcookie()
function above the tag
setcookie("foo", "echobar")
hoping that this would be very simple --
any errors when you try to set the cookie?
>
> Miles
>
> On Wednesday 26 December 2001 05:07 pm, Erik Price wrote:
>> I used
>>
>>
>> > // cookie_test.php
>>
>> if ($type_sel) setcookie("font[type]", $type_sel, time()+3600) ;
>
Just a quick question -- I'm temporarily unsubbed so if anyone could CC
me directly that would be great.
I'm trying to write my code in accordance with the PHP 4.1.0 security
advisory -- that is, I want to use the $_GET and $_POST arrays when
grabbing variables passed with GET and POST forms.
M, Ford, Mike [LSS] wrote:
>> -Original Message-
>> From: Erik Price [mailto:[EMAIL PROTECTED]]
>> Sent: 09 January 2002 19:22
>>
>> I'm trying to write my code in accordance with the PHP 4.1.0 security
>> advisory -- that is, I want to use the $_GET and $_POS
tance?
Erik
On Thursday, January 10, 2002, at 08:18 AM, Ford, Mike [LSS] wrote:
>> -Original Message-
>> From: Erik Price [mailto:[EMAIL PROTECTED]]
>> Sent: 09 January 2002 19:22
>>
>> I'm trying to write my code in accordance with the PHP 4.
It seems that I have a "parse error" somewhere in the following code
(since that's the only code in my script, it's a test script):
// arraytest.php
$tempsql = "SELECT COUNT(*) AS count
FROM divisions";
$tempresult = mysql_query($tempsql, $db);
$temprow = mysql_fetch_arra
I tried that... I get the same error (same line and everything).
As a side note, I haven't ever had to quote the first argument in
mysql_query() before...
This is quite a conundrum, eh?
Erik
On Friday, January 11, 2002, at 04:25 AM, Kevin Stone wrote:
> Hmm I believe that the mysql_query()
On Thursday, January 10, 2002, at 04:39 PM, Rick Emery wrote:
> Show all your code. Did you open a connection to the MYSQL server? If
> so,
> show the code.
>
Okay, but I changed some personal info (that I know is definitely
correct):
Array Test
$tempsql = "SELECT COUNT(*)
Wait, my bad. Typo... all my fault.
I feel like an ass.
Erik
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nd echo each record's
contents (divisions.div_name and divisions.div_id) on each step. This
is to populate a box (listbox).
Any advice, anybody?
Thank you,
Erik
On Thursday, January 10, 2002, at 05:00 PM, Erik Price wrote:
> Wait, my bad. Typo... all my fault.
> I feel like an as
One way to pass a variable by clicking on a hyperlink is to make the
HREF attribute of the anchor tag into a querystring with the variable
that you want to pass.
If you want to pass the variable "$user_id" to the next page, with a
value of "289", here is how you could do it:
Click here for th
On Thursday, January 10, 2002, at 05:16 PM, Martin Towell wrote:
> is this valid in PHP?? (haven't tried it myself yet...)
>
> $tempsql = "SELECT COUNT(*) AS count
> FROM divisions";
>
> maybe it needs to be on one line???
It turns out that my problem was a typo. I apolo
A quick question:
what function is used to remove an array element from an array? Like
array_pop(), except one by which I can refer to the element by its
associative index rather than just the last element of the array.
For more detail with what I'm doing, I have two versions of a
listbox
On Friday, January 11, 2002, at 06:05 AM, Ford, Mike [LSS] wrote:
> Incidentally, I've occasionally had problems including a variable name
> containing an underscore in a double-quoted string (e.g. "$num_recs
> records retrieved"), where PHP tries to insert the value of $num
> followed by th
I am curious if using the same mysql_query() function twice causes some
kind of problem.
It seems that if I use
$result = mysql_query($sql, $db);
if (mysql_fetch_array($result)) {
while ($row = mysql_fetch_array($result) or die("You lose. No data
fetched.")) {
// print some dat
It seems that you are saying that not using quotes is bad (first), but
then later you show that omitting the quotes does not result in an error.
Or are you saying that the quotes can be omitted if the array element is
being used in a string (between quotes), but generally the quotes around
the
EXCELLENT!
It worked perfect.
So $result can't be used twice -- I wonder if it somehow is altered by
the mysql_fetch_array() that is performed upon it.
Thanks Nick.
On Friday, January 11, 2002, at 05:23 PM, Nick Wilson wrote:
> I'll most likely be corrected (I just joined the list to brush u
Because, as a dope, I forget that you can invert IF statements like
that -- you're right, I'd rather do that than mess with the array.
Although the feedback on unset($arrayname['index']) was extremely useful
knowledge! Thank you everyone.
Erik
On Friday, January 11, 2002, at 12:31 PM, Rasm
On Friday, January 11, 2002, at 05:42 PM, Nick Wilson wrote:
> That's not it. Your first $result is a resource indicator (container for
> results) so if you re-assign it (put another value into it) it becomes
> useless as your while statement depends on it.
(This may be redundant, but I'm hopi
Hello everyone,
I am trying to learn how to use ereg_replace(), but I don't seem to be
doing it correctly.
"$phone" is a 10-digit string.
I want to perform the following:
$phone = ereg_replace(".{10}", "[part where I am confused]", $phone);
I would like the output to be
$phone = "(555) 555-
That looks cool -- is there anything like it that uses Tk or GTK?
On Monday, January 14, 2002, at 09:52 AM, Geoff Caplan wrote:
> Hi
>
>
>> TopStyle - http://www.bradsoft.com
>>
>
> I endorse that - it is an excellent product. And for casual use, they
> have a
> free version with nags.
>
> Geo
liljim,
Thanks for the advice (and especially the explanation!) -- I note that
you chose the Perl regexp engine rather than the "e" regexp engine
(POSIX?). Quite a few people recommended O'Reilly's "Mastering Regular
Expressions" over the weekend. Does anyone know if it covers the Perl
synt
On Tuesday, January 15, 2002, at 02:18 PM, Phil Schwarzmann wrote:
> Dumb question: How do I query results from a MySQL that I've already
> queried once before in the same page?
Look, buddy, *I* ask the dumb questions around here!
> Here is my code:
>
> // querying the database for the first
Hi,
I was hoping that someone could point me to a page or resource where I
can find more information about using the predefined variables
introduced in PHP 4.1.0. I read the "release announcement"
(http://www.php.net/release_4_1_0.php), which is what called my
attention to the potential secu
I'm not sure if I understand...
first of all, I could be wrong, but I thought that you had to use the
LIKE operator rather than "=" (equals sign) when trying to match text
strings. But like I said, I could be wrong.
if you did
$query = "SELECT * FROM tabe WHERE lastname LIKE '$lastname' OR
ny additional security? If so, how?
Thank you all,
Erik
On Tuesday, January 15, 2002, at 03:55 PM, Johnson, Kirk wrote:
> Give this a read first, then come back if you still have questions ;)
>
> http://www.securereality.com.au/studyinscarlet.txt
>
> Kirk
>
>> --
Take notes.
On Tuesday, January 15, 2002, at 10:22 PM, Floyd Baker wrote:
>
>
>
> I'm stuck here too. Don't know that much in the first place except
> that I did get it together once. Apache/php4/mysql on win32... Now
> to upgrade it's all new again.
>
> I'm sure php config files are ok to
I'm no guru on the topic, but I found that when configuring the DSO with
MySQL (--with-mysql=/usr/local/mysql), it would always garble the PHP
module. Eventually I got it all set up by not specifying a directory
(in other words, just using "--with-mysql") in that configure argument.
But this
Kirk,
Okay, I now understand why the $_GET and $HTTP_GET_VARS variables are
useful. I had made the mistaken assumption that if I leave
"register_globals" on, but write code that works with "register_globals"
off, my code would somehow be safer simply for having been written this
way. But th
Okay, all of that discussion of predefined variables was well and good.
I'm going through my code and changing everything over to use
$_*['variablename'].
The problem is that a good deal of my code consists of MySQL query
statements with variables inside those statements. An example:
$sql =
The entire page, PHP with HTML, is sent to the PHP engine. It follows
the instructions of the PHP code, outputting only HTML and error
messages, and then hands the data to the web server which sends it to
your browser. Unless something damages the PHP engine, causing the
webserver to serve t
You mispelled the closing "" tag.
On Wednesday, January 16, 2002, at 04:33 PM, Nick Wilson wrote:
>
> * On 16-01-02 at 22:29
> * Richard said
>
>>
>> Hi there
>>
>> I just signed up for an account at Spaceports so I can play with PHP
> I
>> placed some PHP code in an HTML page and upl
n you might as well just do this:
>
> $sql = "SELECT table.column FROM table WHERE criteria LIKE $variable";
>
>
> Using the $_* arrays is only part of the solution. You still have to
> validate/check that data before you rely on it.
>
>
>
> On Wed, 16 J
This is a good one I just learned last week -- unset the variable. That
is,
unset($Arr[2]);
or
unset($Arr['cyanide']);
from what I understand, the discovery of this easy way to do this was
accidental. See the second annotation of "array_splice()" in the PHP
manual here for the details:
On Wednesday, January 16, 2002, at 07:22 PM, Christopher William Wesley
wrote:
> If you are the server's admin, or know the person well, you can tighten
> the file permissions down more with a little administrative work ...
> adding a new group of which your user and the web server are a membe
On Wednesday, January 16, 2002, at 08:04 PM, Rasmus Lerdorf wrote:
> No, it is safer to block access to .inc files with an httpd.conf rule.
> Allowing people to execute files that were meant to be included out of
> context could end up being much more dangerous than simply having people
> see t
On Thursday, January 17, 2002, at 03:33 AM, Nick Wilson wrote:
>
>> Hello...
>>
>> I am wondering: Would it be possible to:
>> 1) Select an option in a selectbox
>> 2) Have a list of checkboxes pop up underneath the selectbox, based on
>> what
>> you selected
>> 3) Without reloading the page...
$TF_string = "Starscream, Megatron, Jetfire, Optimus Prime";
$TF_array = explode(", ", $TF_string);
print_r($TF_array);
(note the space after the comma in the first argument to "explode()",
this necessary to avoid the space being include in each element of the
array)
Hope that helps,
Erik
I didn't know that either. Does this apply only when accessing strings
by character? Or are all conventional uses of brackets deprecated for
the purposes of arrays?
It doesn't say on that page
(http://www.php.net/manual/en/language.types.string.php , a bit more
than halfway down).
Erik
The reason you aren't seeing any errors is because you used "or
die()" -- to the best of my knowledge, this replaces any standard errors
that PHP would normally generate.
It appears that you have omitted the second argument to mysql_query().
A common mistake that I've made many times myself.
gt; echo $str[0][1]; # produces 'fubar'
> echo $str[1][1]; # produces null
> echo $str[1]{1}; # produces 'n'
>
> Again, that's just what I'm assuming from the docs. A quick test would
> clear it up, but it doesn't affect me right no
There is a utility called "daemonic" which is designed to deal with this
as well, but works for more than just MySQL -- it's intended to be used
for all server daemons.
http://daemonic.sourceforge.net/
It is Mac OS X-specific at this time, but according to the web site is
designed for future
Where I went to school (UMass Amherst), they primarily use Java and
C/C++. The reason has been cited that the skills learned in programming
with these languages are scalable to many other languages, including
PHP, and thus form a solid foundation from which other programming
skills can evolve
I thought that all of the source code for that book was available at
http://mysql.he.net/Downloads/Contrib/Examples
according to page 497.
Erik
On Thursday, January 17, 2002, at 08:48 PM, Mike C wrote:
> In electronic format that I can have? It is included in the book
> 'MySQL' by Paul DuB
On Friday, January 18, 2002, at 09:52 AM, Nick Wilson wrote:
>> my PHP (PHP Version 4.1.1) suddenly does not take this anymore:
>> $a['color'] = 'red';
>> I get this error: Parse error: parse error, expecting `T_STRING' or
>> `T_VARIABLE' or `T_NUM_STRING'
>> when I remove the quotes around th
Check out phorum's source, I find it very well-documented and
educational.
I can't imagine how a collaborative effort can work with obfuscated
source...
On Saturday, January 19, 2002, at 05:03 AM, Geoff Caplan wrote:
> Some authors compound the problem by using cryptic variable names,
> thou
I'm not sure exactly what you need help with, but if you're getting any
errors, I'd recommend adding the resource identifier to your mysql_*
functions (usually ($db = mysql_connect(), but YMMV).
But I wonder if you were trying to do something else?
Erik
On Monday, January 21, 2002, at 05:51
Nick, thanks for taking a moment to respond --
>> What I'm wondering is, what should I store in session variables?
>
> Whatever you need to.
Thanks.
>> for the user, to influence the way the site behaves. But I was
>> thinking
>> of adding ten pre-set style sheets (diff't colors, fonts, etc),
From my understanding, as long as you have a "session_start()" function
above the tag, you can work with variables in the form
$_SESSION['variableName'] rather than having to use session_register().
In fact, using session_register() is no longer needed at all. Use
$_SESSION['variableName']
I just learned about a cool function -- "mysql_insert_id()".
You can read about it in the manual, but it sounds like it could be used
to get the AUTO_INCREMENT number from the database and you can then
append that number to your uploaded image file name.
Erik
On Thursday, January 24, 2002, a
On Thursday, January 24, 2002, at 05:01 PM, Lars Torben Wilson wrote:
> Robert, the $HTTP_*_VARS have, indeed, been deprecated, and this is
> noted in the manual.
Then it is safe to say that using $_* variables and -never- using
$HTTP_*_VARS variables is safe practice for forward-compatibili
Hmm... I'm not familiar with the directory functions yet.
But perhaps you can use `ls -F` somehow -- this prints the name of each
file in the directory with a special character to denote its type. For
directories, this is a forwardslash. I.e:
localhost:~/Documents/Media Lab$ ls -F
(admin)ind
In the face of tough economics, it's difficult to hold onto one's
ethics...
Not to start a flame war, but I really hope that the day doesn't come
that I'm forced to use a non-Unix platform for my development.
For now I have this luxury.
Erik
On Thursday, January 24, 2002, at 04:51 PM, Vin
I could be wrong about this, but here goes:
Strings are in fact arrays. An array of characters. The code your
friend gave you manipulates this array in the same way that it would any
"normal" array. The only problem (not really a problem even) is that
when dealing with character-based arra
If you are using a table with AUTO_INCREMENT set for one of the fields,
the default is for MySQL to assign any new row an AUTO_INCREMENT value
that is one higher than the currently highest value in that column. In
other words, MySQL by default does exactly what you say you are trying
to do.
On Thursday, January 24, 2002, at 09:32 PM, Michael Kimsal wrote:
> Being able to positively improve an employer's bottom line is always a
> plus you can bring to any 'job' - you're there to do work and make them
> money too. If you can help by furthering the use of Linux/PHP/etc due
> to th
Stupid. Animates a window that says "You should not have come here!" to
dance around the screen, then locks up the browser by having two new
windows call each other in a loop...
gotta love 'Force Quit' on Mac OS X. Or 'kill' in any other Unix. Or
'turn JS off' in your browser.
Erik
On
Hello, all
I have a quick question about using the "break" statement from within a
switch() statement.
After accepting user input from a form, I want to run this input through
some error checking via PHP code (not Javascript error checking). So
the first thing is the code puts the input thro
On Friday, January 25, 2002, at 04:24 PM, Nick Wilson wrote:
>
> Try to keep your posts a little shorter
> if only for the sake of the dialup users ;)
>
>
Thanks for the tip, but I find that a more verbose message makes
explicit what I am asking. How many times have you seen "I bre
There's a whole section on training in MySQL at their web site. MySQL
AB, a company which provides a great deal of support to the MySQL
community, offers training and other support for MySQL (it is their only
form of revenue, except for commercial Microsoft-based MySQL licensing).
The trainin
On Saturday, January 26, 2002, at 05:49 PM, ,,, wrote:
> When I have an inside my php script it wont work
> since
> php parses it as php code.
>
> Will short_open_tag = Off solve it? I would really like to use
> for the
> rest of my php code...there must be a better solution than
> Short_o
On Sunday, January 27, 2002, at 10:39 PM, Jason Wong wrote:
> On Monday 28 January 2002 04:37, Floyd Baker wrote:
>> I have 4.1, register globals off, on Windows 98.
>> //pull value from session file:
>> $page_views = $_SESSION['page_views'];
> No need for this, in fact this is what is prevent
I have read elsewhere that depending on Cookie data for site
authentication is false economy, because Cookie data can be spoofed.
I'm designing a login that auto-fills a person's name into a field for
authentication (based on their $user_id, which is stored in the cookie),
then they enter a pa
On Tuesday, January 29, 2002, at 11:38 PM, Boaz Yahav wrote:
> Why not simply look the ISBN up in one of the big online shops and take
> the data from there?
> Amazon? B&N?
>
> It all depends on what you will do with the data I guess...
>
A good idea, but if you're running a commercial site of
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