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<?php $test = "No \xc2\xa0issue !"; preg_match_all('/^[\x{20}-\x{7E}£¥èéùìòÇ\rØø\nÅåΔ_ΦΓΛΩΠΨΣΘΞ\x{1B}ÆæßÉ ¤¡ÄÖÑܧ¿äöñüà\x{0C}€]*$/u', $test, $matches); var_dump($matches);

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