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run code in 500+ PHP versions simultaneously
<?php $rand = []; $max = 10000; for ($i = 0; $i < $max; $i++) { $rand[bin2hex(random_bytes(10))] = $i; } $max = 1000; $start = microtime(true); for ($i = 0; $i < $max; $i++) { $keys = []; foreach ($rand as $k => $v) { $keys[] = $k; } } printf("Took %.7f seconds per execution\n", (microtime(true) - $start) / $max); $max = 1000; $start = microtime(true); for ($i = 0; $i < $max; $i++) { $keys = array_keys($rand); } printf("Took %.7f seconds per execution\n", (microtime(true) - $start) / $max);
Output for rfc.property-hooks
Took 0.0001437 seconds per execution Took 0.0000265 seconds per execution
Output for git.master_jit
Took 0.0001431 seconds per execution Took 0.0000284 seconds per execution
Output for git.master
Took 0.0001537 seconds per execution Took 0.0000372 seconds per execution

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