<?php $text = base64_encode(md5('')); $start = microtime(true); for ($i = 0; $i < 100; ++$i) { $result = []; $value = $text; do { $result[] = $value; $value = substr($value, 0, -1); } while ('' !== $value); } $end = microtime(true); echo $i/($end - $start), ' op/s', PHP_EOL; var_dump($result);
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