What are some best practices for integrating PHP and JavaScript to ensure proper functionality?

When integrating PHP and JavaScript, it is important to properly handle the communication between the two languages to ensure proper functionality. One common approach is to use AJAX to make asynchronous requests from JavaScript to PHP scripts, allowing for dynamic data exchange without page reloads. 

// PHP script to handle AJAX request
if(isset($_POST['data'])) {
    $data = $_POST['data'];

    // Process data here

    echo json_encode($result);
}
```

Next, provide a complete JavaScript code snippet that demonstrates how to make an AJAX request to the PHP script.

```javascript
// JavaScript code to make AJAX request to PHP script
var data = {
    // Data to send to PHP script
};

$.ajax({
    type: 'POST',
    url: 'script.php',
    data: { data: data },
    success: function(response) {
        // Handle response from PHP script
    }
});

Keywords

PHP JavaScript integration functionality best practices

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