note 45200 added to language.operators.execution

Backticks operator is similar to double quotes: you have variable parsing and you can concatenate strings (for instance, for inserting a function): <? $data['command']='ls'; $data['folder']='/tmp'; echo {$data['command']} -al {$data['folder']}; echo ls -al . escapeshellarg('/tmp'); ?> ---- Manual Page -- http://www.php.net/manual/en/language.operators.execution.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+45200 Delete -- http://master.php.net/manage/user-notes.php?action=delete+45200&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+45200&report=yes Search -- http://master.php.net/manage/user-notes.php