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<?php include('php://filter:resource=/etc/passwd');
Output for 5.3.0 - 7.1.0
Warning: include(): Invalid php:// URL specified in /in/FTcjc on line 1 Warning: include(php://filter:resource=/etc/passwd): failed to open stream: operation failed in /in/FTcjc on line 1 Warning: include(): Failed opening 'php://filter:resource=/etc/passwd' for inclusion (include_path='.:') in /in/FTcjc on line 1