PHP Codeigniter Curl Post Request Example

I will suggest to use code php curl function like curl_init(), curl_setopt(), curl_exec() etc. using cURL we will call apis to getting json data and we can use their data in our project. i don't think you should use another library for this.

Sometime we need to work with web services and APIs of third party website, at that time we need to use php curl for get request, post request, delete request, put request ect. php curl will help to post request with parameters and headers, we can get json response.

Here, i will give you very simple example of curl request and also give you headers with authentication example on bellow of simple curl request example:

Example:

<?php  
class MyClass extends CI_Controller {
    /**
     * Index Page for this controller.
     *
     */
    public function simleExample()
    {
        /* API URL */
        $url = 'http://www.mysite.com/api';
   
        /* Init cURL resource */
        $ch = curl_init($url);
   
        /* Array Parameter Data */
        $data = ['name'=>'John', 'email'=>'codewale@xyz.com'];
   
        /* pass encoded JSON string to the POST fields */
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            
        /* set the content type json */
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
            
        /* set return type json */
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            
        /* execute request */
        $result = curl_exec($ch);
             
        /* close cURL resource */
        curl_close($ch);
    }
}
?>

Header Auth Example:

<?php  
class MyClass extends CI_Controller {
    /**
     * Index Page for this controller.
     *
     */
    public function simleExample()
    {
        /* API URL */
        $url = 'http://www.mysite.com/api';
             
        /* Init cURL resource */
        $ch = curl_init($url);
            
        /* Array Parameter Data */
        $data = ['name'=>'John', 'email'=>'codewale@xyz.com'];
            
        /* pass encoded JSON string to the POST fields */
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
           
        /* set the content type json */
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                    'Content-Type:application/json',
                    'App-Key: 123456',
                    'App-Secret: 1233'
                ));
            
        /* set return type json */
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            
        /* execute request */
        $result = curl_exec($ch);
           
        /* close cURL resource */
        curl_close($ch);
    }
}
?>

I hope it can help you...