To retrieve the agent ID in `print.php` without a page refresh, you can pass the agent ID as a parameter in the request using JavaScript. Here's how you can modify the code to achieve that:
1. **HTML/JavaScript (frontend)**:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Print Button</title>
</head>
<body>
<button id="printButton">Print</button>
<script>
document.getElementById("printButton").addEventListener("click", function() {
// Assuming you have fetched the agent ID and stored it in a variable called agentId
var agentId = "your_agent_id_here";
// Creating a form element dynamically
var form = document.createElement("form");
// Setting form attributes
form.setAttribute("method", "post");
form.setAttribute("action", "print.php");
// Creating a hidden input field for the agent ID
var hiddenInput = document.createElement("input");
hiddenInput.setAttribute("type", "hidden");
hiddenInput.setAttribute("name", "agentId");
hiddenInput.setAttribute("value", agentId);
// Appending the hidden input field to the form
form.appendChild(hiddenInput);
// Appending the form to the body and submitting it
document.body.appendChild(form);
form.submit();
});
</script>
</body>
</html>
```
2. **PHP (backend)**:
```php
<?php
// print.php
// Retrieving the agent ID from the POST request
$agentId = $_POST['agentId'];
// Assuming you have a database connection established already
// Assuming you have a SQL query to fetch details based on the agent ID
$query = "SELECT * FROM your_table WHERE agent_id = '$agentId'";
// Executing the SQL query
$result = mysqli_query($conn, $query);
// Checking if the query was successful
if ($result) {
// Fetching data and printing it, or performing any other actions
while ($row = mysqli_fetch_assoc($result)) {
// Printing details or processing data
echo "Agent ID: " . $row['agent_id'] . "<br>";
echo "Name: " . $row['name'] . "<br>";
// Add other fields as needed
}
} else {
// Error handling if the query fails
echo "Error: " . mysqli_error($conn);
}
// Closing the database connection
mysqli_close($conn);
?>
```
This code dynamically creates a form element, sets its attributes, adds a hidden input field for the agent ID, appends the form to the body, and submits it. This way, the agent ID is passed to `print.php` without a page refresh. Adjust the code as per your specific requirements and structure.
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