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<?php function acceptOne($a) {}; $str = str_repeat('abcd', 64 * 1024); // 256 KiB length $benchFx = function (string $msg, \Closure $fx) { $times = []; for ($i = 0; $i < 10; $i++) { $t = microtime(true); $fx(); $t = microtime(true) - $t; $times[] = $t; } $bestTime = min($times); echo $msg . ': ' . round($bestTime * 1000, 2) . " ms\n"; }; $benchFx('json_encode', function () use ($str) { for ($i = 0; $i < 200; $i++) { $res = json_encode($str); acceptOne($res); } }); $benchFx('serialize', function () use ($str) { for ($i = 0; $i < 200; $i++) { $res = serialize($str); acceptOne($res); } });
Output for git.master_jit
json_encode: 44.51 ms serialize: 15.11 ms
Output for git.master
json_encode: 44.53 ms serialize: 15.11 ms

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