RE: [PHP-DB] MySQL query executes outside of PHP, but not in PHP
snip
error_log(Hey, the SQL is: $sql);
Then look in your php error log (you do have error logging enabled,
right?)
[McGovern, Dave] Enabled, yes. Usefully enabled, no (correcting this
helped a lot).
If that SQL in the error log is fine, then your problem is
$client2-multi_query($sql) -- what does THAT return? What SHOULD it
return? What are you expecting it to return? Does it return what
you
thought it did?
[McGovern, Dave] It was returning ''. I was expecting 1.
When you do if ($var) it can sometimes have unexpected results. If
$var
is an empty string, it's still true, and executes. I don't know that
multi_query SHOULD return, or how to determine if it throws an error,
but
that's one place to start.
Next, if multi_query worked, then this line is suspect:
if ($result = $client2-use_result()) {
This will always result in TRUE, as the assignment will always
succeed.
Change it to:
if (($result = $client2-use_result())) {
(added parenthesis)
What DB library are you using?
[McGovern, Dave] php_mysqli.dll
---
Peter Beckman Internet
Guy
beck...@angryox.com
http://www.angryox.com/
---
[McGovern, Dave]
Hi, Peter -
Thanks for the suggestions. I did have error logging enabled, but I
wasn't writing any of my own errors to the log, so it wasn't doing me
much good. Once I started doing this, I was able to trace the source of
the error to the fact that this particular SQL script was meant to be
aimed at a different schema. The reason it worked in MySQL Query Browser
was that the required schema was already selected in the Query Browser
(ouch).
Sorry to have wasted the list's time with what turned out to be a silly
human error.
Dave
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[PHP-DB] MySQL query executes outside of PHP, but not in PHP
Hi,
I am running: PHP 5.2.8, Apache 2.2.11, MySQL 5.1.30 on Win32/XP.
I have a number of queries on my page which are very similar in
structure, and they all work except for the following one.
$mysql['process'] = $client2-real_escape_string($clean['process']);
$sql = SELECT f.name, f.description
FROM files f, file_mapping m, processes p
WHERE m.file_id = f.id
AND p.name = '{$mysql['process']}'
AND m.process_id = p.id
AND m.io_flag = 'I';
if ($client2-multi_query($sql)) {
echo 'h3 class=H3-OTMSMain Input Files/h3';
do {
if ($result = $client2-use_result()) {
while ($input = $result-fetch_row()) {
$filename = $input[0];
$descr = $input[1];
echo 'pspan class=FileName'.$filename.'/span'.'
'.$descr.'/p';
}
$result-close();
}
} while ($client2-next_result());
}
If I echo the $sql, and then run it in MySQL directly, it works fine. I
have tried replacing the variable in the WHERE clause with a hardcoded
value and and have tried replacing this query with a very basic query
with no variable, but nothing has worked. No error message is returned.
Any suggestions as to what I might check? Here's an example of an echo
of the following $sql that runs OK in MySQL Query Browser:
SELECT f.name, f.description FROM files f, file_mapping m, processes p
WHERE m.file_id = f.id AND p.name = 'BCOM1AC' AND m.process_id = p.id
AND m.io_flag = 'I'
Thanks,
Dave
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Re: [PHP-DB] MySQL query executes outside of PHP, but not in PHP
On Fri, 23 Jan 2009, dave.mcgov...@sungard.com wrote:
Hi,
I am running: PHP 5.2.8, Apache 2.2.11, MySQL 5.1.30 on Win32/XP.
I have a number of queries on my page which are very similar in
structure, and they all work except for the following one.
$mysql['process'] = $client2-real_escape_string($clean['process']);
$sql = SELECT f.name, f.description
FROM files f, file_mapping m, processes p
WHERE m.file_id = f.id
AND p.name = '{$mysql['process']}'
AND m.process_id = p.id
AND m.io_flag = 'I';
if ($client2-multi_query($sql)) {
echo 'h3 class=H3-OTMSMain Input Files/h3';
do {
if ($result = $client2-use_result()) {
while ($input = $result-fetch_row()) {
$filename = $input[0];
$descr = $input[1];
echo 'pspan class=FileName'.$filename.'/span'.'
'.$descr.'/p';
}
$result-close();
}
} while ($client2-next_result());
}
If I echo the $sql, and then run it in MySQL directly, it works fine. I
have tried replacing the variable in the WHERE clause with a hardcoded
value and and have tried replacing this query with a very basic query
with no variable, but nothing has worked. No error message is returned.
Any suggestions as to what I might check? Here's an example of an echo
of the following $sql that runs OK in MySQL Query Browser:
SELECT f.name, f.description FROM files f, file_mapping m, processes p
WHERE m.file_id = f.id AND p.name = 'BCOM1AC' AND m.process_id = p.id
AND m.io_flag = 'I'
error_log(Hey, the SQL is: $sql);
Then look in your php error log (you do have error logging enabled,
right?)
If that SQL in the error log is fine, then your problem is
$client2-multi_query($sql) -- what does THAT return? What SHOULD it
return? What are you expecting it to return? Does it return what you
thought it did?
When you do if ($var) it can sometimes have unexpected results. If $var
is an empty string, it's still true, and executes. I don't know that
multi_query SHOULD return, or how to determine if it throws an error, but
that's one place to start.
Next, if multi_query worked, then this line is suspect:
if ($result = $client2-use_result()) {
This will always result in TRUE, as the assignment will always succeed.
Change it to:
if (($result = $client2-use_result())) {
(added parenthesis)
What DB library are you using?
---
Peter Beckman Internet Guy
beck...@angryox.com http://www.angryox.com/
---
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