3v4l.org

run code in 300+ PHP versions simultaneously
<?PHP foreach (range(1, 1000) as $c) { $s = utf8_decode(mysql_real_escape_string(utf8_encode(chr($c)))); if ($s == "'") { echo "The character code is $c".PHP_EOL; break; } } echo "Failed"; ?>

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48.15 ms | 402 KiB | 5 Q