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run code in 150+ php & hhvm versions
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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);
based on 6aiCQ
Output for 4.3.3 - 7.1.0
array(1) { [0]=> array(0) { } }
Output for 4.3.0 - 4.3.2
array(1) { [0]=> array(1) { [0]=> string(12) "No  issue !" } }