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<?php $str ="Model number is FM223-56/89."; $model ="FM223-56/89."; $pattern = '/(?!\B\w)' . preg_quote($model, '/') . '(?<!\w\B)/'; echo preg_match($pattern, $str);
Output for 7.4.0 - 7.4.33, 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 - 8.4.18, 8.5.0 - 8.5.3
1

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82.14 ms | 1230 KiB | 4 Q