PHP

CURL in PHP

CURL, PHP

Basics

curl in PHP basically does the same thing as curl in different languages or environments, but php has its own way of using it. It is not too difficult though.
Here are basic codes I used when I was working on GET and POST request.

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$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  // sets return value of executed curl transfer as a string instead of direct output
curl_exec($ch);
curl_close($ch);
  • curl_init() : initialize your curl transfer
  • curl_setopt() : curl_setopt() sets options for curl transfer
  • curl_exec(): execute your curl transfer
  • curl_close() : close (finish) curl transfer

GET

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$request_url .= '?' . http_build_query($fields);

in GET request, if you have parameters http_build_query() can help to build queries automatically.

POST

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curl_setopt($ch, CURLOPT_POST, TRUE); // set curl transfer type as post
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); // set headers as needed
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields); // set parameters
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