Rob questions

• A few questions regarding $_SERVER['HTTP_USER_AGENT'] and using RegEx to extract information from the results
• Is it possible to craft your own packets with python?
• PHP not outputting errors?
• Why is my content too wide for the container?
• How can I send GET data to multiple URLs at the same time using cURL?
• Check if SOCKS4 or 5 in PHP?
• Running a PHP "exec()" in the background on Windows?
• Easiest way to choose a percentage of an amount of rows from a MySQL table?
• md5_file() not working with remote content fetched by URL
• Why is the same input returning two different MD5 hashes?

Rob answers