3v4l.org

run code in 500+ PHP versions simultaneously
<?php function verifyUsername($x){ if (preg_match('/[^a-z]/i',$x)) { return 0; } else { return 1; } } function verifyEmailAdd($x){ if (!filter_var($x, FILTER_VALIDATE_EMAIL)) { return 0; } else { return 1; } } var_dump(verifyUsername("45wqadf")); var_dump(verifyUsername("wqadf")); var_dump(verifyEmailAdd("45wqadf@&%")); var_dump(verifyEmailAdd("wqadf@blah.com"));
Output for 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 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.3
int(0) int(1) int(0) int(1)
preferences:
28.42 ms | 1137 KiB | 6 Q