PHP basic comparison with negative

Question

I cannot find an answer to this and I am sure it is right in front of me. How do I say in PHP as part of an IF statement the following:

if NOT ( (variable1 == 10) && (variable2 == 20) )

Thanks!

Answer 1

You can use ! to achieve this

if ( (variable1 != 10) || (variable2 != 20) )

Or simply

if (!((variable1 == 10) && (variable2 == 20)))