Problem syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$'

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PHP

website

I trying to build my PHP website and showing the error line 50 in index.php
I Just using laravel 5.1 and my version PHP is 5.3.5
I wish don't update my PHP binary version and solving using semicolon or etc.

This my index.php line 50 error

$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);

What I have tried:

I'm trying to change the semicolon