How can PHP be used to retrieve information from a database and display it on a webpage?

To retrieve information from a database and display it on a webpage using PHP, you can use the mysqli extension to connect to the database, execute a query to retrieve the desired data, and then loop through the results to display them on the webpage. 

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

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

// Execute query
$sql = "SELECT * FROM table";
$result = $conn->query($sql);

// Display data
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "ID: " . $row["id"]. " - Name: " . $row["name"]. "<br>";
    }
} else {
    echo "0 results";
}

$conn->close();
?>

Keywords

PHP database retrieval webpage display SQL queries data rendering

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