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*** Initialize a cURL session $ch = curl_init(); *** Set the URL that you want to GET by using the CURLOPT_URL option. curl_setopt($ch, CURLOPT_URL, $url); *** Set CURLOPT_RETURNTRANSFER so that the content is returned as a variable. curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); *** Set CURLOPT_FOLLOWLOCATION to true to follow redirects. curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); *** Timeout after 120 seconds curl_setopt($ch, CURLOPT_CONNECTTIMEOUT , 120); *** Start counting time for response from BL API. $time_start     = microtime(true); $requestTime    = Carbon::now()->format('Y-m-d H:i:s'); *** Execute the request. $response   = curl_exec($ch); *** End counting, and calculate time for response from BL API. $time_end       = microtime(true); $responseTime   = Carbon::now()->format('Y-m-d H:i:s'); $execution_time = ($time_end - $time_start)*1000; *** Return a string containing the ...

Web Service APIs SOAP (Simple Object Access Protocol) XML-RPC (Extensible Markup Language - Remote Procedure Call) JSON-RPC (JavaScript Object Notation -  Remote Procedure Call ) REST (REpresentational State Transfer) OS Functional APIs Access to file system Access to User Interface Hardware APIs Video Acceleration Hard disk drivers PCI Busses (Peripheral Component Interconnect Busses)