<?php $value = base64_encode(md5('')); $start = microtime(true); for ($i = 0; $i < 10000000; ++$i) { $soFar = ''; $result = []; foreach (str_split($value) as $char) { $soFar .= $char; $result[] = $soFar; } } $end = microtime(true); echo $i/($end - $start), ' op/s'; var_dump($result);
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