ID: 48015
Updated by: [email protected]
Reported By: blackmagic at computer dot org
-Status: Open
+Status: Bogus
Bug Type: PostgreSQL related
Operating System: Centos 5.3
PHP Version: 5.2.9
New Comment:
Jani was trying to get you see to that pg_fetch_array has two entries
because it has both the numeric keys AND the column name.
It's quite clearly in the manual that this is the default behavior of
pg_fetch_array. There is a third parameter you can add to only return
numeric keys and therefore resulting in one set when you implode.
Previous Comments:
------------------------------------------------------------------------
[2009-04-19 23:13:25] blackmagic at computer dot org
The scripts in which this implode problem is occurring are remote
scripts which are called from a browser by AJAX. AJAX sends the result
of 'echo $details' back to the browser. If an error occurs during the
running of a script 'echo $details' will return an appropriate error
message. Debugging these scripts is more difficult than debugging PHP
code that's embedded in HTML code.
Since var_dump doesn't return any value I can't see how
var_dump($company) is going to help me with scripts of this type.
I tried 'echo "var_dump($company)"' and the answer was 'var_dump
Array'.
This script snippet works:
for ($index=0; $index<$db_rows; $index++) {
$details = pg_fetch_array($db_result, $index);
$company[$index] = $details[0] . '|' . $details[1] . '|' .
$details[2];
}
$details = implode('^', $company);
echo "$details";
'echo "$details"' returns "1|2|3".
This script snippet doesn't work:
for ($index=0; $index<$db_rows; $index++) {
$details = pg_fetch_array($db_result, $index);
$company[$index] = implode('|', $details);
}
$details = implode('^', $company);
echo "$details";
'echo "$details"' returns "1|1|2|2|3|3".
The only difference between the two scripts is the third line, where
the array returned by pg_fetch_array() is imploded in the script that
doesn't work. This suggests to me that there's something unusual about
arrays returned by pg_fetch_array(), ie, they are treated differently by
implode().
------------------------------------------------------------------------
[2009-04-19 14:18:56] [email protected]
Try 'var_dump($company);' and it should be clear..
------------------------------------------------------------------------
[2009-04-19 11:20:58] blackmagic at computer dot org
Description:
------------
A Postgresql query returns an array. If the array is imploded each
value in the original array appears twice in the implosion.
Assume a Postgresql result array contains $array[0], $array[1],
$array[2];
$x=implode ('|', $array) puts
$array[0]|$array[0]|$array[1]|$array[1]|$array[2]|$array[2] into $x.
$x=$array[0]. '|' . $array[1]. '|' . $array[2]; works fine.
Why is there a difference?
Reproduce code:
---------------
<?php
$company;
$details;
$index;
require_once('../functions/sql_functions.inc');
database_connect();
$db_query = "SELECT
* FROM company ORDER BY id ";
database_query(__FILE__, __LINE__);
if ($db_rows == 0) echo $DB_EMPTY_FILE;
else {
for ($index=0; $index<$db_rows; $index++) {
$details =
pg_fetch_array($db_result, $index);
$company[$index] = implode('|', $details); } //THE BUG
IS HERE// $details =
implode('^', $company);
echo "$details"; }
Expected result:
----------------
I expected to see:
$company[$index] = $details[0]|$details[1]|$details[2].
Actual result:
--------------
Actual result:
$company[$index] =
$details[0]|$details[0]|$details[1]|$details[1]|$details[2]|$details[
2].
This program was working fine until I changed
$company[$index] = $details[0]. '|' . $details[1]. '|' . $details[2];
to
$company[$index] = implode('|', $details);
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=48015&edit=1
