How can PHP be used to retrieve and display data from a MySQL database based on user interactions with graphics on a webpage?

To retrieve and display data from a MySQL database based on user interactions with graphics on a webpage, you can use PHP to handle the backend logic. You would need to establish a connection to the MySQL database, query the database based on the user's interaction, fetch the data, and then display it on the webpage using HTML and PHP. 

<?php
// Establish connection to MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Retrieve user interaction data
$user_interaction = $_POST['user_interaction'];

// Query the database based on user interaction
$sql = "SELECT * FROM table_name WHERE column_name = '$user_interaction'";
$result = $conn->query($sql);

// Display data on the webpage
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "Data: " . $row["column_name"]. "<br>";
    }
} else {
    echo "No data found";
}

// Close connection
$conn->close();
?>

Keywords

PHP MySQL database retrieval user interactions graphics.

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