3v4l.org

run code in 500+ PHP versions simultaneously
<?php $dynamic_list = "AZ, CA, CO"; $static_list = "MN,WA,IA"; $search = "AZ"; if (!empty($search) && strpos($dynamic_list . ',' . $static_list, $search) === false) { // check string is not empty + that it is not on any of the lists echo 'not found: String '.$search.' was not found in lists'; } else { echo 'found'; }
Output for 7.1.25 - 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, 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
found

preferences:
99.24 ms | 1504 KiB | 4 Q