note 114931 added to function.array-filter

My favourite use of this function is converting a string to an array, trimming each line and removing empty lines: <?php $array = array_filter(array_map('trim', explode("\n", $string)), 'strlen'); ?> Although it states clearly that array keys are preserved, it's important to note this includes numerically indexed arrays. You can't use a for loop on $array above without processing it through array_values() first. ---- Server IP: 72.52.91.14 Probable Submitter: 195.99.205.98 ---- Manual Page -- http://php.net/manual/en/function.array-filter.php Edit -- https://master.php.net/note/edit/114931 Del: integrated -- https://master.php.net/note/delete/114931/integrated Del: useless -- https://master.php.net/note/delete/114931/useless Del: bad code -- https://master.php.net/note/delete/114931/bad+code Del: spam -- https://master.php.net/note/delete/114931/spam Del: non-english -- https://master.php.net/note/delete/114931/non-english Del: in docs -- https://master.php.net/note/delete/114931/in+docs Del: other reasons-- https://master.php.net/note/delete/114931 Reject -- https://master.php.net/note/reject/114931 Search -- https://master.php.net/manage/user-notes.php