3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(bin2hex(str_getcsv("foo\0bar,baz")[0]));
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 8.0.0 - 8.0.12, 8.1rc1 - rc3
string(14) "666f6f00626172"

preferences:
42.29 ms | 460 KiB | 5 Q