You dont want to you is_numeric(), because that will match "4e5", etc..etc..
Brent Baisley wrote:
I'm pretty sure there will be a problem with using the is_int() function. A similar problem was discussed a few weeks ago on this list and is_int() will return true for a "number" like 1000e2. The "e" being treated as an exponential representation of an integer.
It might be more reliable to add or subtract 0 from the "string" and see if it changes. Something like:
if( (strlen($str)==6) && ( strcmp(($str-0),$str)==0))
It may just be easier to use ereg if you won't be looping through a bunch of numbers. I don't know what the performance difference is between the above function and ereg or preg.
On Wednesday, July 16, 2003, at 09:43 AM, Justin French wrote:
I tested
if( (strlen($str) == 6) && (is_int($str)) )
vs
if(ereg('^[0-9]{6}$',$str))
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