Validate value as a boolean option in PHP
Description
The following code shows how to validate value as a boolean option.
Example
/*from w ww .j a v a 2s . co m*/
<?php
$var="yes";
var_dump(filter_var($var, FILTER_VALIDATE_BOOLEAN));
/*
Possible return values:
Returns TRUE for "1", "true", "on" and "yes"
Returns FALSE for "0", "false", "off" and "no"
Returns NULL otherwise.
*/
?>
The code above generates the following result.
