<?php $array = array_fill(0, 10, fopen('php://temp', 'r+')); $t1 = microtime(true); foreach ($array as $key) { fclose($key); } echo microtime(true) - $t1 . PHP_EOL; $t2 = microtime(true); array_map('fclose', $array); echo microtime(true) - $t2 . PHP_EOL;
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