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<?php spl_autoload_register(function($class) { throw new Exception("Could not load $class"); }); spl_autoload_register(function($class) { if ($class == "Widget") { eval('class Widget { }'); } }); spl_autoload_register(function($class) { throw new Exception("Still could not load $class"); }); try { new Foo(); } catch (Exception $e) { for ($i = 1; $e; $e = $e->getPrevious()) printf("#%d Foo: %s\n", $i++, $e->getMessage()); } finally { var_dump(class_exists("Foo", false)); } try { new Widget(); } catch (Exception $e) { for ($i = 1; $e; $e = $e->getPrevious()) printf("#%d Foo: %s\n", $i++, $e->getMessage()); } finally { var_dump(class_exists("Widget", false)); }

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