Reduce Bandwidth Usage by Supporting If-Modified-Since in PHP. If-Modified-Since The If-Modified-Since request HTTP header makes the request conditional: the server sends back the requested resource, with a 200 status, only if it has been last modif...

command line tool and library for transferring data with URLs. cURL (pronounced 'curl') is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various network protocols. The name ...