Filters/validates a variable as a boolean.

Alternative to filter_var( $var, FILTER_VALIDATE_BOOLEAN ).

$var mixed Required

Boolean value to validate.

bool Whether the value is validated.

File: wp-includes/functions.php. View all references

function wp_validate_boolean( $var ) {
	if ( is_bool( $var ) ) {
		return $var;
	}

	if ( is_string( $var ) && 'false' === strtolower( $var ) ) {
		return false;
	}

	return (bool) $var;
}