3v4l.org

run code in 300+ PHP versions simultaneously
<?php $seed = (int)bin2hex(openssl_random_pseudo_bytes(16)); $seed = srand($seed) echo $seed;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected 'echo' (T_ECHO) in /in/rGFtf on line 4
Process exited with code 255.
preferences:
175.9 ms | 1395 KiB | 36 Q