3v4l.org

run code in 300+ PHP versions simultaneously
<?php function checkPhysicalAddressOnFile($addresses) { return (bool) count(array_filter($addresses, function($address) { return !preg_match("/p\.o\. box|p\.o box|po box|po\. box|pobox|post office box/i", $address); })); } echo "First test:\n"; var_dump(checkPhysicalAddressOnFile([ "P.O. box 123", "123 Main St" ])); echo "\nSecond test:\n"; var_dump(checkPhysicalAddressOnFile([ "P.O. box 123", "Post Office Box 999" ]));
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
First test: bool(true) Second test: bool(false)
preferences:
237.49 ms | 404 KiB | 213 Q