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<?php $x = '/[^A-Za-z0-9 \r\n@£$¥èéùìòÇØøÅå\x\{0394\}\x\{03A6\}\x\{0393\}\x\{039B\}\x\{03A9\}\x\{03A0\}\x\{03A8\}\x\{03A3\}\x\{0398\}\x\{039E\}ÆæßÉ!"#$%&amp;\'()*+,\-.\/:;<>&lt;=&gt;?¡ÄÖÑܧ¿äöñüà^{}\\\[~\]|\u20AC]+/'; #var_dump($x); #$x = '/\x\{0394\}\x\{03A6\}\x\{0393\}\x\{039B\}\x\{03A9\}\x\{03A0\}\x\{03A8\}\x\{03A3\}\x\{0398\}\x\{039E\}/'; $data = 'asdf‘‼'; $tmp = []; $result = preg_match($x,$data,$tmp); var_dump($result); var_dump($tmp);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: preg_match(): Compilation failed: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u at offset 221 in /in/Xj6Kv on line 7 bool(false) array(0) { }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: preg_match(): Compilation failed: PCRE2 does not support \F, \L, \l, \N{name}, \U, or \u at offset 221 in /in/Xj6Kv on line 7 bool(false) array(0) { }
Output for 7.3.24 - 7.3.33, 7.4.12 - 7.4.33
int(1) array(1) { [0]=> string(2) "�" }
Output for 7.1.6
Warning: preg_match(): Compilation failed: PCRE does not support \L, \l, \N{name}, \U, or \u at offset 220 in /in/Xj6Kv on line 7 bool(false) array(0) { }

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