PHP MySQL update Query Syntax in the Table with MySQLi Example Code

PHP Update Data in MySQL

To change the value of previously saved recode, we have to use the update query.

In other words update query is used to update existing records.

Caution:Here you have to use the where clause and where clause is used to define which records should have to update. If you can not use where clause all the records are updated default.

Example – 1 Update Data in MySQL Example

`
 <?php
$server = "localhost";
$user = "root";
$password = "";
$dbname = "elex_tutorial";

// Create connection
$connection = mysqli_connect($server, $user, $password, $dbname);
// Check connection
if (!$connection) {
    die("Connection failed: " . mysqli_connect_error());
}

$sql = "UPDATE `User` SET `age`='30' WHERE id=1";

if (mysqli_query($connection, $sql)) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . mysqli_error($connection);
}

mysqli_close($connection);
?> 

In the above code, we update the record to the “User” table of “elex_tutorial” database. If the code run successfully then the output show a Record updated successfully. So you have to check in the user table also.

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