PHP Decode

<?  function _0x4fef(){var _0x2d016b=['18Tdmwny','19718530rtdshK','102HeEbjH','8437424egclZp','29474bjGZdT','1284hMhXMN','Hello World!','13705fOiEnz','log','10251794nsCAsX','355305MNXTtD','777582joPgZs'];_0x4fef=function(){return _0x2d016b;};return _0x4fef();}(function(_0x4529db,_0x5c5b78){var _0x3b82ae=_0x16c7,_0xe59be4=_0x4529db();while(!![]){try{var _0x4d6650=-parseInt(_0x3b82ae(0x1a2))/0x1*(-parseInt(_0x3b82ae(0x1a4))/0x2)+-parseInt(_0x3b82ae(0x19e))/0x3+parseInt(_0x3b82ae(0x1a5))/0x4*(parseInt(_0x3b82ae(0x19b))/0x5)+parseInt(_0x3b82ae(0x19f))/0x6+parseInt(_0x3b82ae(0x19d))/0x7+parseInt(_0x3b82ae(0x1a3))/0x8+parseInt(_0x3b82ae(0x1a0))/0x9*(-parseInt(_0x3b82ae(0x1a1))/0xa);if(_0x4d6650===_0x5c5b78)break;else _0xe59be4['push'](_0xe59be4['shift']());}catch(_0x32f24d){_0xe59be4['push'](_0xe59be4['shift']());}}}(_0x4fef,0xecbef));function hi(){var _0x574373=_0x16c7;console[_0x574373(0x19c)](_0x574373(0x19a));}function _0x16c7(_0x3b6e06,_0x322494){var _0x4fef2c=_0x4fef();return _0x16c7=function(_0x16c7b6,_0x39f224){_0x16c7b6=_0x16c7b6-0x19a;var _0x3a4f50=_0x4fef2c[_0x16c7b6];return _0x3a4f50;},_0x16c7(_0x3b6e06,_0x322494);}hi(); ?>