How can I retrieve data from a database based on a specific group in PHP?

To retrieve data from a database based on a specific group in PHP, you can use a SQL query with a WHERE clause that filters the results based on the group criteria. Make sure to properly connect to the database, execute the query, and fetch the results accordingly.

// Connect to the 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);
}

// Define the group criteria
$group = "group_name";

// Retrieve data based on the specific group
$sql = "SELECT * FROM table_name WHERE group_column = '$group'";
$result = $conn->query($sql);

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

// Close the database connection
$conn->close();