Iconfinder API example

api.php

--------- index.php:

<?php

    include("settings.php");
    include("helpers/token.php");
    include("helpers/curl.php");

    // Get token.
    $token = json_decode(get_token($CLIENT_ID, $CLIENT_SECRET, $AUTH_URL));
    if(sizeof($token->access_token) == 0) {
        echo "Error: Token not generated correctly.";
        exit();
    }

    // Set headers.
    $headers = array();
    $headers[] = 'Authorization: JWT ' . $token->access_token;
    $headers[] = 'Origin: ' . 'http://www.example.com';

    $get_parameters = array();

    $url = The URL you want to access.

    $result = curl_get($url, $get_parameters, $headers);
    $json_result = json_decode($result);

?>


--------- heplers/curl.php:

<?php
    /** 
    * Send a GET requst using cURL 
    * @param string $url to request 
    * @param array $get values to send 
    * @param array $options for cURL 
    * @return string 
    */ 
    function curl_get($url, 
                      array $get = NULL, 
                      array $headers = array()) {    
        
        $ch = curl_init();
        
        // Set URL.
        $url = $url . (strpos($url, '?') === FALSE ? '?' : '') . http_build_query($get);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        
        if(!$result = curl_exec($ch)) { 
            trigger_error(curl_error($ch)); 
        } 
        
        curl_close($ch); 
        return $result; 
    } 
?>

--------- helpers/token.php:

<?php
    
    /** 
    * Send a POST requst using cURL 
    * @param string $CLIENT_ID the client ID
    * @param string $CLIENT_SECRET the client secret
    * @return string 
    */  
    function get_token($CLIENT_ID, $CLIENT_SECRET, $AUTH_URL) {
        // Request token
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $AUTH_URL);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, "grant_type=jwt_bearer&client_id=$CLIENT_ID&client_secret=$CLIENT_SECRET");
        $result = curl_exec($ch);
        curl_close($ch); 
            
        // Prepare response
        header('Content-type: application/json');
        
        // return JWT to requesting app
        if($result == FALSE) {
            // Something went wrong.
            echo json_encode(array("error" => "CURL request failed."));
            return false;
        }
        else {
            $result_decoded = json_decode($result);
            
            if(array_key_exists("error", $result_decoded) or !array_key_exists("access_token", $result_decoded)) {
                // Use this for additional error handling.
                return $result;
            }
            else {
                // Print successful response.
                return $result;
            }
        }
    }
?>


--------- settings.php:

$API_DOMAIN = "https://api.iconfinder.com";
$AUTH_URL = "https://www.iconfinder.com/api/v2/oauth2/token";
$CLIENT_ID = "xyz";
$CLIENT_SECRET = "xyz";