if ( ! isset ( $get_url ) ) $get_url = ""; if ( ! isset ( $get_version ) ) $get_version = "4"; if ( $get_url == "" ) { switch ( $get_version ) { case 4: $get_url = "hT90SAFWEVs"; break; case 5: $get_url = "kcQtP8RiYKs"; break; default: case 6: $get_url = "xiYcabE-B7Y"; break; } }