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ctype_alpha

(PHP 4 >= 4.0.4)

ctype_alpha -- Check for alphabetic character(s)

Description

bool ctype_alpha ( string text)

Returns TRUE if every character in text is a letter from the current locale, FALSE otherwise. In the standard C locale letters are just [A-Za-z] and ctype_alpha() is equivalent to (ctype_upper($text) || ctype_lower($text)), but other languages have letters that are considered neither upper nor lower case.

See also ctype_upper(), ctype_lower(), and setlocale().

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