3v4l.org

run code in 500+ PHP versions simultaneously
<?php $cwd = sys_get_temp_dir() . '/php-src-proc-open-nul-poc'; @mkdir($cwd); $proc = proc_open( [PHP_BINARY, '-r', 'echo getcwd(), PHP_EOL;'], [1 => ['pipe', 'w']], $pipes, $cwd . "\0/ignored" ); echo stream_get_contents($pipes[1]); proc_close($proc);

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41.96 ms | 713 KiB | 5 Q