if statement help in php

[craptakular]

I have the following as an if statement:

if ($ThisWeeksResults != $LastWeeksResults) {
	print '$ThisWeeksResults';
	}
	else {
	print 'either the numbers are equal to each other or there isnt numerics in this weeks results';
	}

How do I make sure that the if statement checks that $ThisWeeksResults isn't equal to $LastWeeksResults AND that $ThisWeeksResults is_numeric?

 

[craptakular]

Thanks mate! I am learnin'

IS this a good check though?

It suddenly came into my brain that I needed to check the data or I could have a right mess if it ever goes wrong...