(PHP 4, PHP 5, PHP 7)
settype — Set the type of a variable
varThe variable being converted.
type
       Possibles values of type are:
       
   Returns TRUE on success or FALSE on failure.
  
Example #1 settype() example
<?php
$foo = "5bar"; // string
$bar = true;   // boolean
settype($foo, "integer"); // $foo is now 5   (integer)
settype($bar, "string");  // $bar is now "1" (string)
?>
Note:
Maximum value for "int" is
PHP_INT_MAX.