1. If I use

PHP Code:
$fileget = file("zzz.txt"); 
Do I need to close the file after I have used it? If so, how can I close it?



2. Suppose there is a file named telephone.php. I wish to include only its 3rd and 4th lines. THe 3rd and 4th lines happen to contain PHP code by the way, and I would like that PHP code to be executed. How can I do this?