Data can be updated into MySQL tables by executing SQL UPDATE statement through PHP function mysqli_query.
Below is a simple example to update records into MyGuests table. To update a record in any table it is required to locate that record by using a conditional clause. Below example uses primary key to match a record in MyGuests table.
<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "UPDATE MyGuests SET lastname='Doe' WHERE id=2 AND name = 'sunil' ";
if ($conn->query($sql) === TRUE) {
echo "Record updated successfully";
} else {
echo "Error updating record: " . $conn->error;
}
$conn->close();
?>
