Question

It seems that the uaa() function can be used as a static function even though it is not specifically defined as such. I’m wondering if using the “static” keyword is ever necessary.

<?php

class foo
{
    functon uaa()
    {
        // do something
    }
}

Answer 1

I’m not sure. But if you do that it triggers an E_STRICT:

Strict Standards: Non-static method
a::non_static() should not be called
statically in c:\file.php on
line 12

It is probably wise to be explicit about what is static and what isn’t, at least so you are less likely to do something like try to access $this not in object context.