Bug #39788 [Nab]: in_array don't return false or true

Edit report at https://bugs.php.net/bug.php?id=39788&edit=1 ID: 39788 Updated by: requinix@php.net Reported by: roberto at spadim dot com dot br Summary: in_array don't return false or true Status: Not a bug Type: Bug Package: Arrays related Operating System: ALL PHP Version: 5.2.0 -Block user comment: No +Block user comment: Yes Private report: N New Comment: Thanks for bringing this ticket back up again after almost 7.5 years. It is well established that internal functions may return NULL when you pass invalid or not enough arguments. It's stated on the manual page for internal functions. Making that note again on every single function's documentation page is redundant. Previous Comments: ------------------------------------------------------------------------ [2014-04-07 15:47:47] kilbyc at bellsouth dot net I am not entirely sure how this can be filed as "Not a Bug" Regardless of the emission of the Warning, the documentation clearly states that in_array returns bool, true, false. Null is not an acceptable value in that list. One of the two things needs to be fixed. Either update the manual to say that in_array throws a Warning, and returns NULL if the array is null. OR Fix the function to return false is the array is null. ------------------------------------------------------------------------ [2006-12-10 14:09:03] tony2001@php.net PHP Warning: Wrong parameter count for in_array() in /tmp/6.php on line 25 Warning: Wrong parameter count for in_array() in /tmp/6.php on line 25 NULL ------------------------------------------------------------------------ [2006-12-10 13:26:10] roberto at spadim dot com dot br Description: ------------ RETURN NULL?!?! see documentation http://br.php.net/manual/pt_BR/function.in-array.php just can return TRUE or FALSE! NULL isn't allowed! see that i'm using 4 parameters and no error was showed Reproduce code: --------------- <?php $images=array( "cabec0" => "cabec0", "cabec1" => "cabec1", "cabec2" => "cabec2", "cabec3" => "cabec3", "cabec4" => "cabec4", "login0" => "login0", "login1" => "login1", "login2" => "login2", "login3" => "login3", "login4" => "login4", "messenger0" => "messenger0", "messenger1" => "messenger1", "messenger2" => "messenger2", "messenger3" => "messenger3", "messenger4" => "messenger4", "file_explorer0" => "explorer0","file_explorer1" => "explorer1", "file_explorer2" => "explorer2","file_explorer3" => "explorer3", "file_explorer4" => "explorer4", "yellow"=>"yellow","red"=>"red", "gray"=>"gray","blue"=>"blue","green"=>"green", "logo" => "logo.png", "smm" => "smm.gif" ); $image='rodape'; var_dump(in_array($image,'logo','rodape','smm')); print_r($images); ?> Expected result: ---------------- FALSE Actual result: -------------- NULL ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=39788&edit=1