How can the INTERVAL keyword be used to add days to a date in MySQL queries?

To add days to a date in MySQL queries, you can use the INTERVAL keyword along with the DATE_ADD function. This allows you to specify the number of days you want to add to a date. The syntax for adding days to a date in MySQL queries is as follows: DATE_ADD(date_column, INTERVAL number_of_days DAY). Example PHP code snippet: 

<?php
// Connect 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);
}

// Add 7 days to a date in MySQL query
$sql = "SELECT DATE_ADD(date_column, INTERVAL 7 DAY) AS new_date FROM your_table";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "New Date: " . $row["new_date"] . "<br>";
    }
} else {
    echo "0 results";
}

$conn->close();
?>

Keywords

PHP MySQL INTERVAL date queries

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