How can JSON be utilized in PHP to facilitate communication between web servers?

To facilitate communication between web servers using JSON in PHP, you can encode data into JSON format before sending it and decode JSON data received from the server. This allows for a standardized format that can be easily understood by different systems. 

// Encode data into JSON format before sending
$data = array('name' => 'John Doe', 'age' => 30);
$jsonData = json_encode($data);

// Send JSON data to the server
$response = file_get_contents('http://example.com/api', false, stream_context_create([
    'http' => [
        'method' => 'POST',
        'header' => 'Content-Type: application/json',
        'content' => $jsonData
    ]
]));

// Decode JSON data received from the server
$result = json_decode($response, true);

Keywords

JSON PHP web servers communication libraries

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