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<?php var_dump(file_get_contents("php://filter/resource=/etc/passwd/read=string.toupper"));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: file_get_contents(): open_basedir restriction in effect. File(/etc/passwd/read=string.toupper) is not within the allowed path(s): (/tmp:/in:/etc) in /in/fWYUX on line 2 Warning: file_get_contents(php://filter/resource=/etc/passwd/read=string.toupper): Failed to open stream: operation failed in /in/fWYUX on line 2 bool(false)

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