3v4l.org

run code in 300+ PHP versions simultaneously
<?php $random_key = ''; for( $i = 0; $i <= 64; $i++) { $random_key .= chr(rand(65, 90)); } print strlen($random_key);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 7.2.25, 7.3.0 - 7.3.12, 7.4.0
65
preferences:
203.76 ms | 404 KiB | 246 Q