PHP Tutorial - PHP is_null() function
is_null(value) returns true if value is null.
Syntax
PHP is_null() function has the following syntax.
is_null(value)Parameter
- value is the variable being type checked.
Return
PHP is_null() function returns true if value is null.
Example
Is it NULL.
<?php
var_dump(is_null($value));
?>
The code above generates the following result.
