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I've read how accented characters might sometimes match [a-z]. What I'd like to know is how I could match a specific accented character. Obviously, preg_match('/[ñ]/', 'ñ') does not work.
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PHP preg_match() function. The preg_match() function is a built-in function of PHP that performs a regular expression match. This function searches the string for pattern, and returns true if the pattern exists otherwise returns false. Generally, the searching starts from the beginning of $subject string parameter.
Return Values ¶ preg_match() returns 1 if the pattern matches given subject , 0 if it does not, or false on failure. This function may return Boolean false , but may also return a non-Boolean value which evaluates to false . Please read the section on Booleans for more information.
The strcmp() function compares two strings. Note: The strcmp() function is binary-safe and case-sensitive. Tip: This function is similar to the strncmp() function, with the difference that you can specify the number of characters from each string to be used in the comparison with strncmp().
preg_match stops looking after the first match. preg_match_all , on the other hand, continues to look until it finishes processing the entire string. Once match is found, it uses the remainder of the string to try and apply another match.
Use the /u modifier. That will enable Unicode for the regexes. http://php.net/manual/en/reference.pcre.pattern.modifiers.php
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You can take their codes and match them like \xD0 - heximal sequences if accented symbols are not accepted
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