CDav::ToString

static function ToString($var)
{
	switch (($type = gettype($var)))
	{
		case 'boolean':
			return $var ? 'true' : 'false';
		case 'string':
			return "'$var'";
		case 'integer':
		case 'double':
		case 'resource':
			return $var;
		case 'NULL':
			return 'null';
		case 'object':
		case 'array':
			return str_replace(array("n", '    '), '', print_r($var, true));
	}
	return 'unknown';
}