Curl\Curl::is_array_assoc PHP Method

    public static function is_array_assoc($array)
    {
        return (bool) count(array_filter(array_keys($array), 'is_string'));
    }

 public function testArrayIndexed()
 {
     $this->assertFalse(Curl::is_array_assoc(array('wibble', 'wubble', 'wobble')));
 }