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run code in 300+ PHP versions simultaneously
<?php $result = "°Freenew°\x90ɮ\xc2\xe4dfg\xa0"; //$result = trim($result,"\xc2"/*"\xa0"*/); //echo preg_replace('#[\x00-\x1F\x7F-\x9F]#', '', $result); //reject overly long 2 byte sequences, as well as characters above U+10000 and replace with ? $result= preg_replace('/[\x00-\x08\x10\x0B\x0C\x0E-\x19\x7F]'. '|[\x00-\x7F][\x80-\xBF]+'. '|([\xC0\xC1]|[\xF0-\xFF])[\x80-\xBF]*'. '|[\xC2-\xDF]((?![\x80-\xBF])|[\x80-\xBF]{2,})'. '|[\xE0-\xEF](([\x80-\xBF](?![\x80-\xBF]))|(?![\x80-\xBF]{2})|[\x80-\xBF]{3,})/S', '', $result ); echo $result;
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
°Freenewɮdf

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208.9 ms | 405 KiB | 356 Q