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This article mainly introduces "how php curl only gets data". In daily operation, I believe many people have doubts about how php curl only obtains data. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubt of "how to get data only by php curl"! Next, please follow the editor to study!

Php curl methods to obtain data: 1, through the "function http_curl ($url, $type = 'get', $data =') {...}" method to obtain data; 2, respectively, use POST and GET to obtain data.

This article operating environment: windows7 system, PHP7.1 version, DELL G3 computer

Why does php curl only get data?

Php uses CURL to get data

First, the merger of POST and GET

Function http_curl ($url, $type = 'get', $data =') {$cl = curl_init (); / initialize curl_setopt ($cl, CURLOPT_URL, $url); / / set the cURL transfer option curl_setopt ($cl, CURLOPT_RETURNTRANSFER, 1); / / return the information obtained by curl_exec () as a string instead of outputting it directly. Curl_setopt ($cl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt ($cl, CURLOPT_SSL_VERIFYHOST, false); if ($type = = 'post') {curl_setopt ($cl, CURLOPT_POST, 1); / / send POST request of type application/x-www-form-urlencoded curl_setopt ($cl, CURLOPT_POSTFIELDS, $data);} $output = curl_exec ($cl); / / execute cURL session curl_close ($cl); return $output;}

The second kind of POST is separated from GET.

POST

$url = "http://localhost/web_services.php"; $post_data = array (" username "= >" bob "," key "= >" 12345 "); $ch = curl_init (); curl_setopt ($ch, CURLOPT_URL, $url); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); / / post data curl_setopt ($ch, CURLOPT_POST, 1); curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, false) Curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, false); / / variable curl_setopt of post ($ch, CURLOPT_POSTFIELDS, $post_data); $output = curl_exec ($ch); curl_close ($ch); / / printed data print_r ($output)

GET

/ / initialize $ch = curl_init (); / / set options, including URL curl_setopt ($ch, CURLOPT_URL, "http://www.jb51.net"); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_HEADER, 0); curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, false) / / execute and get the HTML document content $output = curl_exec ($ch); / / release the curl handle curl_close ($ch); / / print the obtained data print_r ($output)

The data obtained in the above way is in json format.

Use json_decode ($output,true) to resolve to arrays; use json_decode ($output) to resolve to objects

Parameter description:

$url: the url address to be requested. If it is a get request, you can add the parameter directly after url.

$type: request method

The parameters carried when the request is made in data:post mode

Curl_init () initiates a cURL session

Curl_setopt () sets a cURL transport option

Curl_exec () executes a cURL session

Curl_close () closes a cURL session

At this point, the study of "how php curl only gets data" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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