3v4l.org

run code in 300+ PHP versions simultaneously
<?php $messages = array( 'ircBot hey', 'hey ircBot', 'hey ircBot naa', 'hey MircBot', ); foreach ($messages as $message) { // using in_array $isMentioned = in_array('ircbot', preg_split('/\s+/', mb_strtolower($message))); printf("%s = {$message}\n", $isMentioned ? 'true' : 'false'); // using regex word boundaries $isMentioned = preg_match('/\b(ircBot)\b/i', $message); printf("%s = {$message}\n", $isMentioned ? 'true' : 'false'); }
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, 5.5.24 - 5.5.35, 5.6.7 - 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 - 8.2.19, 8.3.0 - 8.3.7
true = ircBot hey true = ircBot hey true = hey ircBot true = hey ircBot true = hey ircBot naa true = hey ircBot naa false = hey MircBot false = hey MircBot
preferences:
201.69 ms | 406 KiB | 315 Q