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<?php $test = 1; $$test = 2; ${'t e s t'} = 3; var_dump($test, $$test, ${'t e s t'}); $test = 4; var_dump($$test);
Output for git.master, git.master_jit, rfc.property-hooks
int(1) int(2) int(3) Warning: Undefined variable $4 in /in/pl2uZ on line 7 NULL

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