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<?php class Car{ public static function a(){ return 'hi'; } } class Constants{ public static $use='Car'; } echo ${"{\Constants::$use}"}::a();
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $use in /in/NVV6W on line 11 Warning: Undefined variable ${\Constants::} in /in/NVV6W on line 11 Fatal error: Uncaught Error: Class name must be a valid object or a string in /in/NVV6W:11 Stack trace: #0 {main} thrown in /in/NVV6W on line 11
Process exited with code 255.

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