PHP Manual
PrevNext

ctype_digit

(PHP 4 >= 4.0.4)

ctype_digit -- Check for numeric character(s)

Description

bool ctype_digit ( string text)

Returns TRUE if every character in text is a decimal digit, FALSE otherwise.

See also ctype_alnum() and ctype_xdigit().

PrevHomeNext
ctype_cntrlUpctype_graph