3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo \getcwd(); \mkdir('/tmp/foo'); \chdir('/tmp/foo'); \rmdir('/tmp/foo'); // Outputs: / (incorrect) echo \getcwd(); echo PHP_EOL; // Outputs: false (correct) echo \realpath(''); echo PHP_EOL; // Crash echo \realpath('.'); echo \realpath('./');

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