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<?php $name = "Alice"; print "${name} said Hello World to the crowd of people.\n"; print "${'name'} said Hello World to the crowd of people.\n"; print "$name said Hello World to the crowd of people.\n";
based on IgJbM
Output for 4.3.0 - 7.1.10
Alice said Hello World to the crowd of people. Alice said Hello World to the crowd of people. Alice said Hello World to the crowd of people.