How To Stop Script?

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For example:

 

if(strlen($username ) == 0)

 

{ echo "Username is empty! All fields are required!"; }

 

If it echo's "Username is empty! All fields are required!" I want it to stop running, so that no further error messages display in my script, but if it does not echo then I continues running.

 

Is there a way to do this?

 

 

 

 

So, try this:

 

 

if(strlen($username ) == 0) {

 

 

echo "Username is empty! All fields are required!";

 

 

exit();

 

 

 }

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