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Checks if all of the characters in the provided string, text, are hexadecimal 'digits'.
Returns TRUE if every character in text is a hexadecimal 'digit', that is a decimal digit or a character from [A-Fa-f] , FALSE otherwise.
Poprzedni | Spis treści | Następny |
ctype_upper | Początek rozdziału | CURL, Client URL Library Functions |
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Generated: 2007-01-26 18:02:25