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<?php // UNIT_MARKER_INVALID_CHARS = '_/\n<>'; echo $ic = preg_quote( '_/\n<>', '~'); var_dump( preg_match( "~[$ic]~", 'this-contains-letter-n' ) ); var_dump( preg_match( "~[$ic]~", 'this-comtaims-letter-m' ) ); var_dump( preg_match( "~[$ic]~", 'aaa' ) );
Output for 7.2.0 - 7.2.33, 7.3.0 - 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 - 8.3.4, 8.3.6
_/\\n\<\>int(1) int(0) int(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 _/\\n\<\>int(1) int(0) int(0)
preferences:
141.71 ms | 402 KiB | 181 Q