Don’t Copy Extra Variables in PHP
        by Sanju[ Edit ] 2012-06-18 13:19:18 
         
        
        	Don’t Copy Extra Variables in PHP
Some people like to try and make their code more appealing by copying predefined variables to smaller-named variables. This is redundant and could potentially double the memory of your script. 
Google Code has bad and good examples of variable usage:
Good:
	echo strip_tags($_POST['name']);
Bad :
	$name = strip_tags($_POST['name']);
	echo $name;