Submit JSON format data using PHP's Curl extension

Instance Code

$ch = curl_init();curl_setopt_array($ch, [        CURLOPT_RETURNTRANSFER=>true,        CURLOPT_POST=>true,        CURLOPT_HEADER=>false,        CURLOPT_TIMEOUT=>30,        CURLOPT_HTTPHEADER=>["Content-type:application/json"],        CURLOPT_URL=>"http://localhost/city",        CURLOPT_POSTFIELDS=>'{"province_id":39}',        ]);$result = curl_exec($ch);print_r($result);

return Result:

{"Code":1,"Data":[{"ID":"Max","name":"Shijiazhuang City"},{"ID":" the","name":"Tangshan"},{"ID":"a","name":"Qinhuangdao Shi"},{"ID":" the","name":"Hanhan"},{"ID":" the","name":"Xingtai"},{"ID":"131","name":"Baoding"},{"ID":"158","name":"Zhangjiakou City"},{"ID":"177","name":"Chengde"},{"ID":" the","name":"Cangzhou"},{"ID":"208","name":"Langfang"},{"ID":" the","name":"Hengshui"}]}

Description

The default value of Curlopt_header is false, so the above option can not be set
If you do not pass JSON-formatted data, you can use Http_build_query to create curlopt_postfields values (in the form of name=tom&age=25)

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The above describes the use of PHP's Curl extension to submit JSON format data, including aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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