PHP. Руководство по PHP. 2005
ctype_cntrl
ctype_cntrl
Описание
bool ctype_cntrl (string text)Checks if all of the characters in the provided string, text, are control characters. Control characters are e.g. line feed, tab, esc.
ctype_cntrl
Checks if all of the characters in the provided string, text, are control characters. Control characters are e.g. line feed, tab, esc.
text
The tested string.
Returns TRUE if every character in text is a letter from the current locale, FALSE otherwise.
ctype_print() |
ctype_alpha
ctype_digit
Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.
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