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<?php var_dump(file_get_contents("php://filter/resource=/etc/passwd"));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: file_get_contents(): Unable to locate filter "resource=" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (resource=) in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to locate filter "etc" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (etc) in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to locate filter "passwd" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (passwd) in /in/X8fkb on line 2 string(28) "root:x:0:0::/root:/bin/bash "
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.3 - 7.4.33
Warning: file_get_contents(): unable to locate filter "resource=" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (resource=) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to locate filter "etc" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (etc) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to locate filter "passwd" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (passwd) in /in/X8fkb on line 2 string(28) "root:x:0:0::/root:/bin/bash "
Output for 7.0.20, 7.1.5 - 7.1.7, 7.2.0, 7.3.12, 7.4.0
Warning: file_get_contents(): unable to locate filter "resource=" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (resource=) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to locate filter "etc" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (etc) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to locate filter "passwd" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (passwd) in /in/X8fkb on line 2 string(612) "root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/usr/bin/nologin daemon:x:2:2:daemon:/:/usr/bin/nologin mail:x:8:12:mail:/var/spool/mail:/usr/bin/nologin ftp:x:14:11:ftp:/srv/ftp:/usr/bin/nologin http:x:33:33:http:/srv/http:/usr/bin/nologin nobody:x:99:99:nobody:/:/usr/bin/nologin systemd-journal-gateway:x:191:191:systemd-journal-gateway:/:/usr/bin/nologin systemd-timesync:x:192:192:systemd-timesync:/:/usr/bin/nologin systemd-network:x:193:193:systemd-network:/:/usr/bin/nologin systemd-bus-proxy:x:194:194:systemd-bus-proxy:/:/usr/bin/nologin systemd-resolve:x:195:195:systemd-resolve:/:/usr/bin/nologin "
Output for 7.1.20, 7.2.6
Warning: file_get_contents(): open_basedir restriction in effect. File(/etc/passwd) is not within the allowed path(s): (/tmp:/in) in /in/X8fkb on line 2 Warning: file_get_contents(php://filter/resource=/etc/passwd): failed to open stream: operation failed in /in/X8fkb on line 2 bool(false)
Output for 5.1.5 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.14, 7.1.0
Warning: file_get_contents(): unable to locate filter "resource=" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (resource=) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to locate filter "etc" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (etc) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to locate filter "passwd" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (passwd) in /in/X8fkb on line 2 string(688) "root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/usr/bin/nologin daemon:x:2:2:daemon:/:/usr/bin/nologin mail:x:8:12:mail:/var/spool/mail:/usr/bin/nologin ftp:x:14:11:ftp:/srv/ftp:/usr/bin/nologin http:x:33:33:http:/srv/http:/usr/bin/nologin uuidd:x:68:68:uuidd:/:/usr/bin/nologin dbus:x:81:81:dbus:/:/usr/bin/nologin nobody:x:99:99:nobody:/:/usr/bin/nologin systemd-journal-gateway:x:191:191:systemd-journal-gateway:/:/usr/bin/nologin systemd-timesync:x:192:192:systemd-timesync:/:/usr/bin/nologin systemd-network:x:193:193:systemd-network:/:/usr/bin/nologin systemd-bus-proxy:x:194:194:systemd-bus-proxy:/:/usr/bin/nologin systemd-resolve:x:195:195:systemd-resolve:/:/usr/bin/nologin "
Output for 5.1.0 - 5.1.4
Warning: file_get_contents(): unable to create or locate filter "resource=" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (resource=) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to create or locate filter "etc" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (etc) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to create or locate filter "passwd" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (passwd) in /in/X8fkb on line 2 string(688) "root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/usr/bin/nologin daemon:x:2:2:daemon:/:/usr/bin/nologin mail:x:8:12:mail:/var/spool/mail:/usr/bin/nologin ftp:x:14:11:ftp:/srv/ftp:/usr/bin/nologin http:x:33:33:http:/srv/http:/usr/bin/nologin uuidd:x:68:68:uuidd:/:/usr/bin/nologin dbus:x:81:81:dbus:/:/usr/bin/nologin nobody:x:99:99:nobody:/:/usr/bin/nologin systemd-journal-gateway:x:191:191:systemd-journal-gateway:/:/usr/bin/nologin systemd-timesync:x:192:192:systemd-timesync:/:/usr/bin/nologin systemd-network:x:193:193:systemd-network:/:/usr/bin/nologin systemd-bus-proxy:x:194:194:systemd-bus-proxy:/:/usr/bin/nologin systemd-resolve:x:195:195:systemd-resolve:/:/usr/bin/nologin "
Output for 5.0.0 - 5.0.5
Warning: file_get_contents(): unable to create or locate filter "resource=" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (resource=) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to create or locate filter "etc" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (etc) in /in/X8fkb on line 2 Warning: file_get_contents(): unable to create or locate filter "passwd" in /in/X8fkb on line 2 Warning: file_get_contents(): Unable to create filter (passwd) in /in/X8fkb on line 2 string(688) "root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/usr/bin/nologin daemon:x:2:2:daemon:/:/usr/bin/nologin mail:x:8:12:mail:/var/spool/mail:/usr/bin/nologin ftp:x:14:11:ftp:/srv/ftp:/usr/bin/nologin http:x:33:33:http:/srv/http:/usr/bin/nologin uuidd:x:68:68:uuidd:/:/usr/bin/nologin dbus:x:81:81:dbus:/:/usr/bin/nologin nobody:x:99:99:nobody:/:/usr/bin/nologin systemd-journal-gateway:x:191:191:systemd-journal-gateway:/:/usr/bin/nologin systemd-timesync:x:192:192:systemd-timesync:/:/usr/bin/nologin systemd-network:x:193:193:systemd-network:/:/usr/bin/nologin systemd-bus-proxy:x:194:194:systemd-bus-proxy:/:/usr/bin/nologin systemd-resolve:x:195:195:systemd-resolve:/:/usr/bin/nologin "
Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.9
Warning: file_get_contents(php://filter/resource=/etc/passwd): failed to open stream: Success in /in/X8fkb on line 2 bool(false)
Output for 4.3.2
Warning: file_get_contents(php://filter/resource=/etc/passwd): failed to open stream: Inappropriate ioctl for device in /in/X8fkb on line 2 bool(false)
Output for 4.3.0 - 4.3.1
Warning: file_get_contents(php://filter/resource=/etc/passwd) [http://www.php.net/function.file-get-contents]: failed to create stream: Inappropriate ioctl for device in /in/X8fkb on line 2 bool(false)

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