#24626 [Opn->Bgs]: foreach stops with boolen expresion in loop

ID: 24626 Updated by: elmicha@php.net Reported By: eric at austarmetro dot com dot au -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: Win XP PHP Version: 4.3.3RC1 New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Thank you for your interest in PHP. "&&" is a boolean operator, "&" works bitwise (on integers, not on strings). "&=" also works bitwise. And $c == 'two' does never happen in the script you posted. If you remove the spaces from your $a values, $status('two') will return 0, which makes $status 0. After that, the status() function is never called again, because $status already is 0, which is equivalent to false ("short-circuit evaluation"). Stick some echos in the loop and you'll see that it works just fine. Previous Comments: ------------------------------------------------------------------------ [2003-07-12 17:45:22] eric at austarmetro dot com dot au Description: ------------ The foreach loop exits early and sets the $status variable to "". The problem is fixed by changing $status = $status && status( $b ); to $status &= status( $b ); Hope this is bogus :) I have tried this on WinXP PHP4.3.3RC1 and FREEBSD PHP4.3.1 both give the same result. Eric Reproduce code: --------------- <? function status( $c ) { echo $c; if( $c == 'two' ) return 0; return 1; } $a = array( 'one ','two ','three ','four ' ); $status = 1; foreach( $a as $b ) { $status = $status && status( $b ); } echo " foreach stopped. Status = ".$status; if( isset( $status ) ) echo " set "; else echo "unset"; ?> Expected result: ---------------- onetwothreefour foreach stopped. Status = 0 set Actual result: -------------- onetwo foreach stopped. Status = set ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=24626&edit=1