Undefined index error using render function

Question

I was able to use render successfully in both buy.php and sell.php, but can't seem to get it in quote.php. Here's the relevant snippet:

$stock = lookup($_POST["symbol"]);

$issue[] = [
            "name"=>$stock["name"],
            "price"=>$stock["price"],
            ];
render("quoteoutput_form.php", ["name"=>$issue["name"], "price"=>$issue["price"]]);

I'm getting an undefined index error for both name and price in the render line.

Answer 1

Note the use of brackets [] on this line:

$issue[] = [
            "name"=>$stock["name"],
            "price"=>$stock["price"],
            ];

This results in $issue being treated as an array. The two brackets [] means that the value on the right is being appended to the $issue array.

This is probably not what you want since you are only passing a single stock symbol in the POST parameter.

The correct code would be:

$issue = [
          "name"=>$stock["name"],
          "price"=>$stock["price"],
          ];