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<?php function fdopen($id, $mode) { return fopen("/proc/self/fd/".(int)$id, $mode); } echo fdopen("php://fd/3");
Output for 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught ArgumentCountError: Too few arguments to function fdopen(), 1 passed in /in/G6PJH on line 8 and exactly 2 expected in /in/G6PJH:3 Stack trace: #0 /in/G6PJH(8): fdopen('php://fd/3') #1 {main} thrown in /in/G6PJH on line 3
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught ArgumentCountError: Too few arguments to function fdopen(), 1 passed in /in/G6PJH on line 8 and exactly 2 expected in /in/G6PJH:3 Stack trace: #0 /in/G6PJH(8): fdopen('php://fd/3') #1 {main} thrown in /in/G6PJH on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Warning: Missing argument 2 for fdopen(), called in /in/G6PJH on line 8 and defined in /in/G6PJH on line 3 Notice: Undefined variable: mode in /in/G6PJH on line 4 Warning: fopen(): open_basedir restriction in effect. File(/proc/self/fd/0) is not within the allowed path(s): (/tmp/) in /in/G6PJH on line 4 Warning: fopen(/proc/self/fd/0): failed to open stream: Operation not permitted in /in/G6PJH on line 4

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