How to set the request headers when performing HTTP requests.

This is basically just Facebooks way of telling you to slow down a bit. You have likely been adding people too fast.

Getting the HTTP response headers with cURL in PHP is not straight forward. There is no build-in way to do this, but we can still cut out the headers from the response message, if CURLOPT_HEADER is true.

Setting custom HTTP Headers with cURL is useful when changing User Agent or Cookies. Headers can be changed two ways, both using the curl_setopt function.

I think we can expect another movie at some point, and here is why.

Cool tutorial on how to change the iframe src attribute value using JavaScript.