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<?php var_dump(array_walk($undefined, 'var_dump'));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: array_walk(): Argument #1 ($array) must be of type array, null given in /in/eDFnn:2 Stack trace: #0 /in/eDFnn(2): array_walk(NULL, 'var_dump') #1 {main} thrown in /in/eDFnn on line 2
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 TypeError: array_walk(): Argument #1 ($array) must be of type array, null given in /in/eDFnn:2 Stack trace: #0 /in/eDFnn(2): array_walk(NULL, 'var_dump') #1 {main} thrown in /in/eDFnn on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_walk() expects parameter 1 to be array, null given in /in/eDFnn on line 2 NULL
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: array_walk(): The argument should be an array in /in/eDFnn on line 2 bool(false)
Output for 4.3.0 - 4.3.1
Warning: array_walk() [http://www.php.net/function.array-walk]: The argument should be an array in /in/eDFnn on line 2 bool(false)

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