Are there any specific PHP libraries or functions that can assist in creating and managing JSON streams on a server?

To create and manage JSON streams on a server in PHP, you can use the `json_encode()` function to convert PHP data structures into JSON strings and the `json_decode()` function to convert JSON strings back into PHP data structures. Additionally, you can use the `file_get_contents()` and `file_put_contents()` functions to read and write JSON data to files on the server.

// Create a JSON stream
$data = array('name' => 'John', 'age' => 30);
$jsonString = json_encode($data);

// Write JSON data to a file
file_put_contents('data.json', $jsonString);

// Read JSON data from a file
$jsonString = file_get_contents('data.json');
$data = json_decode($jsonString, true);

// Access JSON data
echo $data['name']; // Output: John
echo $data['age']; // Output: 30