3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $foo = 42; var_dump(strlen($foo)); var_dump(ctype_digit($foo)); var_dump(date($foo, '123'));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(2) Deprecated: ctype_digit(): Argument of type int will be interpreted as string in the future in /in/6aIGB on line 7 bool(false) string(2) "42"
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, 5.3.0 - 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 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
int(2) bool(false) string(2) "42"
preferences:
298.06 ms | 405 KiB | 459 Q