3v4l.org

run code in 300+ PHP versions simultaneously
<?php class AttackStream { function stream_open($path, $mode, $options, &$opened_path) { return true; } function stream_read($count) { echo $count,"\n"; return "AA"; } function stream_eof() { return true; } function stream_set_option() { return true; } function stream_seek($offset, $whence) { return false; } } stream_wrapper_register("attack", "AttackStream") or die("Failed to register protocol"); $f = fopen("attack://nothing", "r"); fread($f, 1); ?>

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37.29 ms | 402 KiB | 5 Q