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<?php $values = []; const ITERATIONS = 100000; $start = microtime(true); for ($i = 0; $i < ITERATIONS; $i++) { strtr('1_000_000', ['_' => '']); strtr('1000000', ['_' => '']); } $values['strtr'] = microtime(true) - $start; $start = microtime(true); for ($i = 0; $i < ITERATIONS; $i++) { str_replace('_', '', '1_000_000'); str_replace('_', '', '1000000'); } $values['str_replace'] = (microtime(true) - $start); asort($values); echo array_key_first($values). "\n"; foreach ($values as $key => $val) { // echo "\n".str_pad($key, 14, ' ') . number_format($val * 1000 / ITERATIONS, 5) . " ms / k"; }
Output for git.master_jit
str_replace
Output for git.master
strtr

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