<?php function noop($d){return $d;} $d = '';$i=$e=0; $start = microtime(1); while($i++ < 5000000) $d = str_rot13('rotate 13'); echo microtime(1) - $start; echo "\n"; $start = microtime(1); while($e++ < 5000000) $d = noop('rotate 13'); echo microtime(1) - $start;
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