note 24800 deleted from function.intval by sniper

Note Submitter: ---- Note that you may substitute '\d' above by '[0-9]' for faster operations of PCRE regexps: - '[0-9]' is an explicit and constant character class that can be precompiled and reused. - '\d' is a conditional character class which is evaluated at runtime according to the current locale at invokation time with ctype_digit() function called to check each character; this disables some optimizations in the PCRE regexp compiler, as the following sets can't be precompiled.