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<?php class Test { function __construct(){echo 'a';} } new ${!${''}='Test'}; new ${'Test'};
Output for git.master, git.master_jit, rfc.property-hooks
a Warning: Undefined variable $Test in /in/r45Tu on line 9 Fatal error: Uncaught Error: Class name must be a valid object or a string in /in/r45Tu:9 Stack trace: #0 {main} thrown in /in/r45Tu on line 9
Process exited with code 255.

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