note 57312 added to language.types.array

From: Date: Fri, 30 Sep 2005 09:55:37 +0000
Subject: note 57312 added to language.types.array
Groups: php.notes 
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Regarding the previous comment, beware of the fact that reference to the last value of the array remains stored in $value after the foreach: <?php foreach ( $arr as $key => &$value ) { $value = 1; } // without next line you can get bad results... //unset( $value ); $value = 159; ?> Now the last element of $arr has the value of '159'. If we remove the comment in the unset() line, everything works as expected ($arr has all values of '1'). Bad results can also appear in nested foreach loops (the same reason as above). So either unset $value after each foreach or better use the longer form: <?php foreach ( $arr as $key => $value ) { $arr[ $key ] = 1; } ?> ---- Manual Page -- http://www.php.net/manual/en/language.types.array.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+57312 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+57312&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+57312&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+57312&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+57312&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+57312&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+57312&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+57312&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+57312&report=yes Search -- http://master.php.net/manage/user-notes.php

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