Undefined variables...

[Anon]

While writing various scripts I have come accross hundreds of 'Warning: Undefined variable:' messages. I know that this is harmless to the scripts process but I am just wonderng if anyone feels that it is worth declaring all variables to prevent this. Are there any problems that could arise, in relation to the efficiency of server-side processes etc.?

[Anon]

Declaring variables IS good programming practice.

In PHP one doesn't declare variables, yet, what's possible is to use error_reporting to warn when some variable is being used and that has no previous attributed value.

Attributing a value to a variable is not the same as Declaring a variable.

I think PHP should have some kind of option to DECLARE variables.

You can prevent that error in runtime setting

<?

error_reporting ( E_ALL & ~E_NOTICE )

?>

if I'm not in error that's is the correct sintax to use in this case ..