From:             enygma at phpdeveloper dot org
Operating system: Red Hat Linux
PHP version:      4.3.2
PHP Bug Type:     *General Issues
Bug description:  array_merge allowing "false" as argument

Description:
------------
Code:
---------------------------------------
$array1=false; 
$array2=array("test"=>"1","testing"=>"2");
$last_array=array_merge($array1,$array2); 
echo "<pre>"; print_r($last_array); echo "</pre>";
---------------------------------------

Result:
---------------------------------------
Array
(
    [0] => 
    [test] => 1
    [testing] => 2
)
---------------------------------------

Please note that not only does array_merge allow the "false" to be passed
in, but when it is, a mysterious [0] appears in the results (null array
value?)

Reproduce code:
---------------
<?php
$array1=false;
$array2=array("test"=>"1","testing"=>"2");
$last_array=array_merge($array1,$array2);
echo "<pre>"; print_r($last_array); echo "</pre>";
?>

Expected result:
----------------
Either an "invalid argument" for the "false" being passed in, or no extra
Null array value appended to the resulting array.

Actual result:
--------------
Array
(
    [0] => 
    [test] => 1
    [testing] => 2
)

-- 
Edit bug report at http://bugs.php.net/?id=25494&edit=1
-- 
Try a CVS snapshot (php4):  http://bugs.php.net/fix.php?id=25494&r=trysnapshot4
Try a CVS snapshot (php5):  http://bugs.php.net/fix.php?id=25494&r=trysnapshot5
Fixed in CVS:               http://bugs.php.net/fix.php?id=25494&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=25494&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=25494&r=needtrace
Try newer version:          http://bugs.php.net/fix.php?id=25494&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=25494&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=25494&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=25494&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=25494&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=25494&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25494&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=25494&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=25494&r=isapi
Install GNU Sed:            http://bugs.php.net/fix.php?id=25494&r=gnused

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