note 26029 added to function.eval

A better way to implement the previous example - N.B. Eval is not REQUIRED for something with a hard interface like this pattern. call_user_func is an alternative as is call_user_func_array for those functions that need parameters as well. Eval is a last ditch resort for this pattern.: class Processor { function Processor( $cmd ) { static $callbacks = array( "add"=>"add", "cha"=>"change", "del"=>"delete", "new"=>"add", "mod"=>"change", "rem"=>"delete" ); $proc = $callbacks[$cmd]; if( $proc ) $this->$proc(); // Alternatives include // call_user_func(array(&$this,$proc)); // call_user_func_array(array(&$this,$proc),array()); } function add() { echo "add"; } function change() { echo "change"; } function delete() { echo "delete"; } } -- http://www.php.net/manual/en/function.eval.php http://master.php.net/manage/user-notes.php?action=edit+26029 http://master.php.net/manage/user-notes.php?action=delete+26029 http://master.php.net/manage/user-notes.php?action=reject+26029