For a customer project, we needed to do a jSON query with PHP. So I searched the web for a tutorial how to do, but I’ve found much about the PHP jSON functions, but not much how to make requests to jSON interfaces with PHP. So I try to explain you how it works.
Sending Data with PHP to a jSON Script with curl
To get the data we use the PHP curl functions. In our example we have added a authentication with curl, if not needed, just leave the lines, commented with // authentication.
[php]
// jSON URL which should be requested
$json_url = ‘http://www.mydomain.com/json_script.json’;
$username = ‘your_username’; // authentication
$password = ‘your_password’; // authentication
// jSON String for request
$json_string = ‘[your json string here]’;
// Initializing curl
$ch = curl_init( $json_url );
// Configuring curl options
$options = array(
CURLOPT_RETURNTRANSFER => true,
CURLOPT_USERPWD => $username . “:” . $password, // authentication
CURLOPT_HTTPHEADER => array(‘Content-type: application/json’) ,
CURLOPT_POSTFIELDS => $json_string
);
// Setting curl options
curl_setopt_array( $ch, $options );
// Getting results
$result = curl_exec($ch); // Getting jSON result string
[/php]
The result will be a jSON string.
Normally you have to send a jSON string to the jSON URL and you will get a jSON string back. To encode your data, just use the php jSON functions. Use json_encode to create a json string from your PHP array and use json_decode to transform the jSON string to PHP array.
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