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run code in 300+ PHP versions simultaneously
<?php $s = '/headers/'; $h = '/imglib/'; $data = array(); for ($i = 0; $i < 5000; ++$i) { $data[] = $h; } foreach ($data as $d) { strncmp('/headers/', $d, 9); }

preferences:
31.59 ms | 402 KiB | 5 Q