I got this syntax error saying there is a mistake on line 4, but I can't seem to find it..can you help me?
Parse error:  syntax error, unexpected ':', expecting ',' or ')' in C:\XAMPP\htdocs\projekt\ajax.php on line 4
My code:
<?php
if (isset($_POST["key"])) {
    $conn = new mysqli(host:"localhost", username:"root", passwd:"", dbname:"serije_bp");
    $name = $conn->real_escape_string($_POST["naziv"]);
    $opis = $conn->real_escape_string($_POST["opis"]);
    $ocjena = $conn->real_escape_string($_POST["ocjena"]);
    if ($_POST["key"] == "dodajNovu") {
        $sql = $conn->query(query: "SELECT id FROM serije WHERE naziv = '$naziv'");
        if ($sql->num_rows > 0)
            exit("TV serija je vec unesena!");
        else {
            $conn->query(query: "INSERT INTO serija (naziv, opis, ocjena)
                                VALUES ('$naziv', '$opis', '$ocjena')");
            exit("TV serija je uspjesno unesena!");
        }
    }
}
?>
 
     
    