3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach(["FILTER_VALIDATE_BOOLEAN","FILTER_VALIDATE_BOOL","FILTER_VALIDATE_INT","FILTER_VALIDATE_INTEGER"] as $lol){ echo "{$lol}: ".((int)defined($lol))."\n"; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
FILTER_VALIDATE_BOOLEAN: 1 FILTER_VALIDATE_BOOL: 1 FILTER_VALIDATE_INT: 1 FILTER_VALIDATE_INTEGER: 0
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
FILTER_VALIDATE_BOOLEAN: 1 FILTER_VALIDATE_BOOL: 0 FILTER_VALIDATE_INT: 1 FILTER_VALIDATE_INTEGER: 0

preferences:
147.1 ms | 407 KiB | 5 Q