<?php
$servername = "";//Enter Servername E.G. localhost
$username = "";//Database username
$password = 'PA$$';//Database Password
$dbname = "";//Database Name

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

$sql = "UPDATE `mdl_job_assignment` SET `totarasync` = '1' WHERE `totarasync` = '0'";

if ($conn->query($sql) === TRUE) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . $conn->error;
}

$conn->close();
?>