From:             stitch at tuks dot co dot za
Operating system: Windows XP & Linux
PHP version:      4.3.4
PHP Bug Type:     Variables related
Bug description:  Variable with value 0 is not evaluated correctly within if statement

Description:
------------
When i use foreach to go through an array, and use an if statement to
evaluate the $key, it enters into the if statement incorrectly when $key =
0, even though the if statement reads 'if ($key == "test")'

It is not supposed to enter when $key = 0, but as the Actual result shows,
it does. 

This does not happen even when $key = 1, tho. 
I have tested this on both PHP 4.3.4 and PHP 4.0.1

Thank you very much, keep up the good work.

Reproduce code:
---------------
<?
$the_array["aap"] = array("figure"=> "circle", "colour"=>"blue");
$the_array[] = array("figure" => "triangle", "colour"=>"red");
$the_array["test"] = array ("figure" => "sqaure", "colour"=>"neon");

foreach ( $the_array as $key => $value){
        if ($key == "test") {
                echo "\$key = $key\n";
                echo "A ". $value["colour"]. " " . $value["figure"]."\n";
        }
}
?>

Expected result:
----------------
The following output in text:
$key = test
A neon sqaure

Actual result:
--------------
The following output in text:
$key = 0
A red triangle
$key = test
A neon sqaure

-- 
Edit bug report at http://bugs.php.net/?id=27066&edit=1
-- 
Try a CVS snapshot (php4):  http://bugs.php.net/fix.php?id=27066&r=trysnapshot4
Try a CVS snapshot (php5):  http://bugs.php.net/fix.php?id=27066&r=trysnapshot5
Fixed in CVS:               http://bugs.php.net/fix.php?id=27066&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=27066&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=27066&r=needtrace
Need Reproduce Script:      http://bugs.php.net/fix.php?id=27066&r=needscript
Try newer version:          http://bugs.php.net/fix.php?id=27066&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=27066&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=27066&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=27066&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=27066&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=27066&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=27066&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=27066&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=27066&r=isapi
Install GNU Sed:            http://bugs.php.net/fix.php?id=27066&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=27066&r=float

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