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Checks if all of the characters in the provided string, text, are alphanumeric. In the standard C locale letters are just [A-Za-z] and the function is equivalent to preg_match('/^[a-z0-9]*$/i', $text).
Returns TRUE if every character in text is either a letter or a digit, FALSE otherwise.
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Character Type Functions | Początek rozdziału | ctype_alpha |
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Generated: 2007-01-26 18:02:24