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<?php $x = '[^A-Za-z0-9 \r\n@£$¥èéùìòÇØøÅå\u0394_\u03A6\u0393\u039B\u03A9\u03A0\u03A8\u03A3\u0398\u039EÆæßÉ!"$%&amp;\'()*+,\-./:;<>&lt;=&gt;?¡ÄÖÑܧ¿äöñüà^{}\\\[~\]|\u20AC]+'; $x = preg_quote($x,'#'); var_dump($x); $data = 'asdf‘‼'; $tmp = []; $result = preg_match($x,$data,$tmp); var_dump($result); var_dump($tmp);
Output for git.master, git.master_jit, rfc.property-hooks
string(230) "\[\^A\-Za\-z0\-9 \\r\\n@£\$¥èéùìòÇØøÅå\\u0394_\\u03A6\\u0393\\u039B\\u03A9\\u03A0\\u03A8\\u03A3\\u0398\\u039EÆæßÉ\!"\$%&amp;'\(\)\*\+,\\\-\./\:;\<\>&lt;\=&gt;\?¡ÄÖÑܧ¿äöñüà\^\{\}\\\\\[~\\\]\|\\u20AC\]\+" Warning: preg_match(): Delimiter must not be alphanumeric, backslash, or NUL in /in/Ej2ek on line 7 bool(false) array(0) { }

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