what is this?

[Eugene]

I've read through a lot of scripts and some use this: [color=red]{[/color]$this->content[color=red]}[/color]

Point of the  { }???

[hackerkts]

Here's an example when you can use it:
[code]<?php
if ($a == "a") {
  echo "It's a";
  } else {
      echo "It's not a";
      }
?>[/code]

[.josh]

actually in that context it's to prevent ambiguity.

[wildteen88]

Have a read of [url=http://www.phpfreaks.com/forums/index.php/topic,97120.msg389185.html#msg389185]this thread[/url]

[hussain]

{$this->content} it print the value contain in content variable

[Daniel0]

It's used to display the value of a variable inside a string enclosed in double quotes.