Update records using mysqli functions with binding parameters

IN all the below examples you need to use database config file with connection string.

Updating all records (without parameters )

require "config.php";// Database connection file.
$query="UPDATE  student SET class='Four'";
if ($connection->query($query)) {
echo "Records Updated";
}else{
echo $connection->error;
}

With number of rows updated

$query="UPDATE  student SET class='Four'";
if ($connection->query($query)) {
echo "Records Updated : ";
echo $connection->affected_rows;
}else{
echo $connection->error;
}

With Parameters by using bind_param()

<?Php
require "config.php";// Database connection file.

$class='Three';
$mark=66;
$id=5;
$query="UPDATE  student SET class=?,mark=? WHERE id=?";
$stmt = $connection->prepare($query);
if ($stmt) {
$stmt->bind_param('sii', $class, $mark, $id);
$stmt->execute();
echo "Record Updated:";
echo $stmt->affected_rows;
}else{
echo $connection->error;
}
?>

MySQL Update Query

Procedural style

$class='Three';
$mark=68;
$id=5;
$query="UPDATE  student SET class=?,mark=? WHERE id=?";
if ($stmt = mysqli_prepare($connection,$query)){
mysqli_stmt_bind_param($stmt, "sii", $class, $mark, $id);
mysqli_stmt_execute($stmt);
echo "Record Updated:";
echo mysqli_affected_rows($connection);

}else{
echo mysqli_error($connection);
}

MySQL DUMP of student table

MYSQLI Update query

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