What is the significance of the mysqli query in the code snippet?

The significance of the mysqli query in the code snippet is that it is responsible for executing a SQL query on the database to retrieve or manipulate data. It is a crucial part of interacting with a MySQL database in PHP and must be used correctly to ensure proper data retrieval or manipulation. 

// Fixing the issue by adding a mysqli query to execute a SQL query on the database
$conn = new mysqli($servername, $username, $password, $dbname);

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

$sql = "SELECT * FROM table_name";
$result = $conn->query($sql);

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

$conn->close();

Keywords

mysqli query code snippet significance PHP

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