3v4l.org

run code in 300+ PHP versions simultaneously
<?php $timeTarget = 0.350; // 350 ms $cost = 4; // lowest do { $cost++; $start = microtime(true); password_hash("test", PASSWORD_BCRYPT, ["cost" => $cost]); $end = microtime(true); } while (($end - $start) < $timeTarget); echo "Appropriate Cost Found: " . $cost; // < 11 is not enough
Output for 8.2.0 - 8.2.27, 8.3.0 - 8.3.16, 8.4.1 - 8.4.3
Appropriate Cost Found: 13

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49.41 ms | 406 KiB | 5 Q