3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(STREAM_CRYPTO_METHOD_TLS_CLIENT);
Output for 7.4.0 - 7.4.14, 8.0.0
int(121)
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.26
int(57)
Output for 5.6.38 - 5.6.40, 7.0.33, 7.1.0 - 7.1.31
int(9)