int hasAttWithStringValue(string $attribute, string $value[, int $flags])

•Returns 1 if $attribute exists and has the value $value, else returns zero.

•Performs a case-insensitive compare and, before comparing, removes any leading and trailing spaces from the attribute value (not from the value parameter and after any character references have been replaced).

•$flags

•1 - $value is a token in a space-separated list of tokens (case-insensitive) (New v11.0114)

•Use only in tag name start programs.

•This function is supported only in CSE HTML Validator v10.00 and later.