Zend Studio reports warning: Assignment in condition. Is this so bad?

Question

I have recently started using Zend Studio which has reported as warning the following type of code:

$q = query(\"select * from some_table where some_conditio         


        

Answer 1

This is probably marked as a warning because people often use "=" by mistake when they mean "==".

eg:

$a = 1
while($a = 1) {
   $a++;
}

This will never terminate, though if you thought you'd written "==", it should.