3v4l.org

run code in 300+ PHP versions simultaneously
<?php mt_srand(42, MT_RAND_MT19937); print mt_rand() ."\n"; print mt_rand() ."\n"; mt_srand(42, MT_RAND_MT19937); print mt_rand() ."\n"; print mt_rand() ."\n";
Output for 7.1.25 - 7.1.28, 7.2.0 - 7.2.17, 7.3.0 - 7.3.4
804318771 1710563033 804318771 1710563033
preferences:
74.05 ms | 402 KiB | 32 Q