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<?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 git.master, git.master_jit, rfc.property-hooks
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

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