(PHP 4 >= 4.0.3, PHP 5, PHP 7) Return the last error number

(PHP 4 >= 4.0.3, PHP 5, PHP 7) Return a string containing the last error for the current session

(PHP 5 >= 5.5.0, PHP 7) Unserialization handler

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Perform a cURL session

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Gets cURL version information

(PHP 5 >= 5.5.0, PHP 7) URL encodes the given string

(PHP 5 >= 5.5.0, PHP 7) Get MIME type public

(PHP 5 >= 5.5.0, PHP 7) Reset all options of a libcurl session handle

(PHP 5 >= 5.5.0, PHP 7) Return string describing error code

(PHP 5 >= 5.5.0, PHP 7) Initialize a cURL share handle