What is the best way to retrieve a value from the last entry in a MySQL database using PHP?

To retrieve a value from the last entry in a MySQL database using PHP, you can use an SQL query to select the desired value from the table by ordering the entries in descending order based on a unique identifier (such as an auto-incrementing ID). Then, fetch the result and access the value. 

<?php
// Connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";
$conn = new mysqli($servername, $username, $password, $dbname);

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

// Retrieve the value from the last entry in the database
$sql = "SELECT desired_column FROM table_name ORDER BY unique_id_column DESC LIMIT 1";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Output data of the last entry
    $row = $result->fetch_assoc();
    $value = $row["desired_column"];
    echo "Value from last entry: " . $value;
} else {
    echo "0 results";
}

$conn->close();
?>

Keywords

PHP MySQL database retrieval last entry

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