3v4l.org

run code in 300+ PHP versions simultaneously
<?php // http://gathering.tweakers.net/forum/list_message/41881215#41881215 function foo($string1, $string2) { /* Retourneert true dan en slechts dan wanneer de twee argumenten strings zijn en het eerste argument lexicografisch kleiner is. */ return strcmp($string1, $string2); return is_string($string1) && is_string($string2) && $string1 < $string2; } var_dump( foo(1,2), foo('1','2'), foo('a','b'), foo('b','a'), foo('ab','ab'), foo('abc','ab'), foo('2xx','2yy') );
Output for 7.3.30 - 7.3.33, 7.4.19 - 7.4.20, 7.4.23 - 7.4.33, 8.0.1, 8.0.5 - 8.0.7, 8.0.9 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(-1) int(-1) int(-1) int(1) int(0) int(1) int(-257)
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 - 7.3.29, 7.4.0 - 7.4.16, 7.4.21 - 7.4.22, 8.0.0, 8.0.2 - 8.0.3, 8.0.8
int(-1) int(-1) int(-1) int(1) int(0) int(1) int(-256)

preferences:
338.91 ms | 405 KiB | 465 Q