note 59431 added to function.array-walk-recursive

A simple way to implement array_walk_recursive() in PHP 4 is to use to do the following... <?php // first, lets define our function function test_array_walkr( &$item, $key ) { // do what you want to do here - in this example we will // check to see if $item is an array. If it is, we will // check to see if the key '.hide' exists. If this exists, // we will set the entire array to NULL; if( is_array($item) && array_key_exists('.hide', $item) ) { $item = NULL; } // this is the code that causes the recursive effect // we do this after, to allow for any changes to $item // to be included in the next recursive call... if( is_array($item) ) { array_walk($item, __FUNCTION__); } } // next, let's define our array: $test = array( 'one' => array('one->one', 'one->two', 'one->three'), 'two' => array('.hide'=>true, 'two->one', 'two->two', 'two->three'), 'three' => array('three->one', 'three->two', 'three->three') ); // lets run the test. ;-) array_walk($test, 'test_array_walkr'); // ... and get the results print_r($test); ?> This example will yeild: Array ( [one] => Array ( [0] => one->one [1] => one->two [2] => one->three ) [two] => [three] => Array ( [0] => three->one [1] => three->two [2] => three->three ) ) Hope this helps someone. :-) ---- Manual Page -- http://www.php.net/manual/en/function.array-walk-recursive.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+59431 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+59431&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+59431&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+59431&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+59431&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+59431&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+59431&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+59431&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+59431&report=yes Search -- http://master.php.net/manage/user-notes.php