What does this PHP code do ?

[Echo]

I get that message too , i just clicked on " ignore " to see what it does ...

Echo Reviewed by Echo on 9th Oct 2009. What does this PHP code do ? Hello guys , I blocked an attack on my site , look here : http://193.111.244.157/zzzz/ This is the attacker's site . What is this ????? It shows Rating: 5