Write a PHP script to report the total download size of any URL. You may not use any 3rd-party code that performs the entire task described below.
No HTML interface is necessary for this exercise; you can write this as a command-line script that accepts the URL as an argument.
For a single-file resource such as an image or SWF, the script would simply report on the total size of the document.
For a complex resource such as an HTML document, the script would need to parse it to find references to embedded, included resources: javascript files, CSS files, iframes, etc.
The goal of this exercise is to output the following information for a given URL:
– total number of HTTP requests
– total download size for all requests
Answer: http://www.programmerinterview.com/index.php/php-questions/php-interview-questions-and-answers/