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<?php $forbidden_words = array("word1", "word2", "word3"); $string = "a very long text .... word"; if(preg_match('/\b(' . implode('|', array_map('preg_quote', $forbidden_words)) . ')\b/', $string)) { echo 'have forbidden word(s)'; } else { echo 'no forbidden words'; }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
no forbidden words

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92.08 ms | 1120 KiB | 4 Q