The code works when its typed in phpmyadmin but not working in my web site

Question

The code work fine in the phpmyadmin but when i try to do it with php from the website it doesn't change the value :/ help !?

enter code here
<?php
    include_once 'logiranje.php';
    $maticen = $conn->real_escape_string($_POST['maticenpromena']);
    $naziv = $conn->real_escape_string($_POST['nazivsmetka']);
    if ($naziv=="Participacija") 
    {
        $naziv = "101010";
    }
    else if ($naziv=="Materijali") //problem here it was IF instead of ELSE IF
    {
        $naziv = "202020";
    }
    else
        $naziv = "303030";
    $mesec = $conn->real_escape_string($_POST['mesec']);
    $godina = $conn->real_escape_string($_POST['godina']);
    $sql = "UPDATE imaat SET imaat.platena=true WHERE imaat.embg=$maticen AND 
imaat.id_smetka= $naziv AND imaat.mesec=$mesec AND 
imaat.godina=$godina;";
mysqli_query($conn,$sql);
header("Location: ../smetki.php?platenasmetka=success");
?>

Answer 1

your sql is not correct, try with this:

$sql = "UPDATE imaat SET imaat.platena=true WHERE imaat.embg=".$maticen." AND 
imaat.id_smetka=". $naziv." AND imaat.mesec=".$mesec." AND 
imaat.godina=".$godina;

or

$sql = "UPDATE imaat SET imaat.platena=true WHERE imaat.embg='$maticen' AND 
imaat.id_smetka='$naziv' AND imaat.mesec='$mesec' AND 
imaat.godina='$godina'";

when you insert $var inside your query , you are not put the value of variable , but the word $var that why , he can't find a row thoses variables names.