I'm working on rest api with php, mysql for a quote application. the json data should be displayed on a webpage (bootstrap) and I have a function javascript file that runs when the page is ready. the function calls a getjosn function through jquery that sends the request to api.php. when the page opens I'm getting
"internal server error"
when $.getjson function is executed.
Here's the code:
$(function() {
    //variables
    var functionName = 'GetProducts';
    //Get products
    function LoadData() {
        $.getJSON("http://localhost/quoteapi/api.php?function="+functionName+"&jsonCallback=?", function(data) {
            console.log(data);
        });
    }
    LoadData();    
});
api.php
<?php
$connect = mysql_connect('localhost', 'root', 'somepassword', 'quotesapi_db') or die('Database connection error.'. mysqli_error($connect));
if(!isset($_GET['function'])) {
    die('some error occurred');
}
function GetProducts($db) {
    $sql = mysqli_query($db, 'SELECT * FROM quotes ORDER BY id');
    if(mysqli_num_rows($sql) > 0) {
        while($row = mysqli_fetch_array($sql)) {
            $data[] = $row['quote'];
        }
    }
    print_r($data);
}
//GetProducts($db);
    $data = json_encode($data);
    echo $_GET['josnCallback'].'('.$data.')';
?>
 
    