<?php function filter() { return array_filter(array('foo' => 42, 'bar' => 50), function ($val) { return $val == 50; }); } function map() { return array_map(function ($val) { return $val*2; }, array('foo' => 84, 'bar' => 25)); } for ($i = 0; i < 100; $i++) { filter(); map(); } var_dump(filter(), bar());
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