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run code in 300+ PHP versions simultaneously

@ 2021-03-09T23:03:38Z

<?php

public function add(Request $request)
    {
        $cart_arr = $request->session()->get('products-cart');

        if ($cart_arr !== null){
            $cart = [
                'id' => $request->product_id,
                'qty' => $request->product_qty,
            ];

            foreach ($cart_arr as $item) {
                if ($item['id'] == $request->product_id){
                    continue;
                }
                $request->session()->push('products-cart', $cart);
            }
        }

        else{
            $cart = [
                'id' => $request->product_id,
                'qty' => $request->product_qty,
            ];

            $request->session()->push('products-cart', $cart);
        }

        return redirect()->back();
    }

Output for 8.0.0 - 8.0.3: Parse error: syntax error, unexpected token "public", expecting end of file in /in/Kg40l on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.27, 7.4.0 - 7.4.16: Parse error: syntax error, unexpected 'public' (T_PUBLIC), expecting end of file in /in/Kg40l on line 3
Process exited with code 255.

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