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@ 2023-12-17T04:52:21Z

<?php

function filterwords(string $text, array $bannedWords)
{
    return preg_replace(
        '/(?=\b(?:' . implode('|', $bannedWords) . ')\b)\w|\G(?!^)\w/i',
        '*',
        $text
    );
}

echo filterwords("I am a dummy, but I'm not dumb", ['dummy']);

Output
Performance
VLD
References
Branches

implode: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive previewkey bindings

31.1 ms | 405 KiB | 5 Q