note 55969 added to language.expressions

12345alex at gmx dot net 's case is actually handled by the === operator. That's what he needs. There is also another widely used function. I call it myself is_nil which is true for NULL,FALSE,array() and '', but not for 0 and "0". function is_nil ($value) { return !$value && $value !== 0 && $value !== '0'; } Another useful function is "get first argument if it is not empty or get second argument otherwise". The code is: function def ($value, $defaultValue) { return is_nil ($value) ? $defaultValue : $value; } ---- Manual Page -- http://www.php.net/manual/en/language.expressions.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55969 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55969&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55969&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55969&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55969&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55969&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55969&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55969&report=yes Search -- http://master.php.net/manage/user-notes.php