3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php /** * This code will benchmark your server to determine how high of a cost you can * afford. You want to set the highest cost that you can without slowing down * you server too much. 8-10 is a good baseline, and more is good if your servers * are fast enough. The code below aims for ≤ 50 milliseconds stretching time, * which is a good baseline for systems handling interactive logins. */ $timeTarget = 0.05; // 50 milliseconds $cost = 8; do { $cost++; $start = microtime(true); password_hash("test", PASSWORD_BCRYPT, ["cost" => $cost]); $end = microtime(true); } while (($end - $start) < $timeTarget); echo "Appropriate Cost Found: " . $cost . "\n";
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Appropriate Cost Found: 10
Output for 5.4.0 - 5.4.45
Fatal error: Call to undefined function password_hash() in /in/kIYsR on line 15
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/kIYsR on line 15
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/kIYsR on line 15
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/kIYsR on line 15
Process exited with code 255.