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<?php $pass = 'secret'; $salt = '$2y$07$usesomesillystringforsaltzzzzzzzzzzzzz$'; var_dump( CRYPT_SALT_LENGTH, crypt($pass, $salt));
Output for 5.3.7 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.20, 8.3.0 - 8.3.8
int(123) string(60) "$2y$07$usesomesillystringforex.u2VJUMLRWaJNuw0Hu2FvCEimdeYVO"
Output for 5.3.2 - 5.3.6
int(123) string(13) "$2naUPy3R0iOg"
Output for 5.3.0 - 5.3.1
int(60) string(13) "$22XjkTaaGJ1Y"
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

Process exited with code 139.

preferences:
288.92 ms | 403 KiB | 470 Q