this my source code does not work please help me by editing it

Question

<?php
include_once 'db_connect.php';
include_once 'functions.php';

$client_id = $_POST['client_id'];
$name = $_POST['name'];
$national_id = $_POST['national_id'];
$address = $_POST['address'];
$tel_1 = $_POST['tel_1'];
$tel_2 = $_POST['tel_2'];
$email = $_POST['email'];
$client_category = $_POST['client_category'];
$kra_pin= $_POST['kra_pin'];
$next_of_kin = $_POST['next_of_kin'];
$next_of_kin_tel = $_POST['next_of_kin_tel'];

$sql = ("UPDATE clients SET client_id='$client_id', name='$name', national_id='$national_id',
address='$address', tel_1='$tel_1', tel_2='$tel_2', email='$email', client_category='$client_category',
kra_pin='$kra_pin', next_of_kin='$next_of_kin', next_of_kin_tel='$next_of_kin_tel' WHERE client_id='$client_id'");

$imagine = "../images/smile.jpeg";
$view = "../add_litigation_matter.php";
$non = "../add_non_litigation_matter.php"

if ($mysqli->query($sql) === TRUE) {
echo "<p>Record saved. <a href = '$view'>Add Litigation File</p>";
echo "<p><a href = '$non'>Add Non Litigation File</p>";
header("refresh:5;url=../add_litigation_matter.php");
} else {
echo "Error: " . $sql . "<br>" . $mysqli->error;
}

$mysqli->close();
?>

Answer 1

So before trying to understand the entire code, I can see that there's no semicolon ; at the end of the declaration of the $non variable.