Comments on: Understanding and Validating Integers in PHP

By: manikantan.v.r

manikantan.v.r — Thu, 23 Jun 2011 10:11:12 +0000

easy to understand thanks

Manoj — Mon, 12 Apr 2010 09:59:55 +0000

i always suspect for validate integer value but now i am sure how to validate integer value.
Thanks all

Suresh — Mon, 12 May 2008 19:10:32 +0000

thanxs

Roshan — Tue, 06 May 2008 16:36:13 +0000

Thanks for heads up shafiq….I’ve mentioned it in the post

Shafiq Rehman — Tue, 06 May 2008 12:50:24 +0000

If you are using ctype_digit() function to validate integer values you must keep in mind that it will return true when you pass ZERO (0) to it.

Check the different behaviors of this function

ctype_digit(’0′); // return true
ctype_digit(0); // return false
ctype_digit(’1′); // return true
ctype_digit(1); // return false