3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $tests = array(); $test_string = mb_convert_encoding('&#xAC00;&#xAC01;', 'UTF-8', 'HTML-ENTITIES'); $tests['string_length'] = (mb_strlen($test_string, 'UTF-8') === 2); $tests['string_match'] = (preg_match('/^\X+$/u', $test_string) === 1); $fails = array(); foreach ($tests as $key => $value) { if ($value === false) { $fails[$key] = $value; } } if (count($fails) > 0) { echo "Failed: " . join(', ', array_keys($fails)) . PHP_EOL; exit(1); } exit(0);

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55.24 ms | 402 KiB | 5 Q