Lets begin curl scripting

cURL is a library which allows you to connect and communicate to many different types of servers with many different types of protocols. Using cURL you can:

  • Implement payment gateways’ payment notification scripts.
  • Download and upload files from remote servers.
  • Login to other websites and access members only sections.

PHP cURL library is definitely the odd man out. Unlike other PHP libraries where a whole plethora of functions is made available, PHP cURL wraps up major parts of its functionality in just four functions.

A typical PHP cURL usage follows the following sequence of steps.

curl_init – Initializes the session and returns a cURL handle which can be passed to other cURL functions.

curl_opt – This is the main work horse of cURL library. This function is called multiple times and specifies what we want the cURL library to do.

curl_exec – Executes a cURL session.

curl_close – Closes the current cURL session.

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