3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mlbCities = array( 'Carolina', 'Atlanta', 'New Orleans', 'Philadelphia', 'St. Louis', 'Washington', 'Houston', 'Tennessee', 'New England', 'NY Jets', 'Cincinnati', 'Green Bay', 'Arizona', 'Jacksonville', 'Oakland', 'Kansas City', 'Minnesota', 'Detroit', 'Tampa Bay', 'Buffalo', 'Seattle', 'San Francisco', 'Pittsburgh', 'Chicago', 'Baltimore', 'San Diego', 'Cleveland', 'Denver', 'NY Giants', 'Dallas', 'Indianapolis', 'Miami' ); $string = 'San Francisco'; foreach($mlbCities as $bad) { $place = strpos($string, $bad); if (!empty($place)) { echo 'Bad word'; exit; } else { echo "Good"; } } ?>

preferences:
40.2 ms | 402 KiB | 5 Q