quine

自分自身を吐き出すコードのとこ

作り方
http://d.hatena.ne.jp/bellbind/20081101/1225491517

PHP版quine

readfile(__FILE__);

これはジョークｗ

<?php
$str = array(
    'echo "<?php\n\$str = array(\n";',
    'array_walk($str, \'hoge\');',
    'echo ");\n";',
    'echo join("\n", $str) . "\n";',
    'echo "?>";',
    'function hoge($s){echo "    \'".str_replace(chr(0x27), chr(0x5c).chr(0x27), $s)."\',\n";}',
);
echo "<?php\n\$str = array(\n";
array_walk($str, 'hoge');
echo ");\n";
echo join("\n", $str) . "\n";
echo "?>";
function hoge($s){echo "    '".str_replace(chr(0x27), chr(0x5c).chr(0x27), $s)."',\n";}
?>

前半と後半に分けて変換関数で再現。「'」とか「\」を文字コードで扱う