[PHP] How to find if a string is an integer?

[Jean-Christian IMbeault]

I would like to test wether a $_POST var is an integer or not. What is 
the best way?

I ahve tried is_int() but that fails b/c $_POST vars are always strings. 
is_numeric() doesn't help because it doesn't differentiate bewteen 
numbers (1.0) and integers (1).

The best I have been able to come up with is:

if (is_numeric($var) && is_int((int)$var))

But I ma hoping there is something simpler ...

Any ideas?

thansk,

Jean-Christian Imbeault

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