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<?php namespace Foo; set_error_handler(function () { throw new \Exception(); }); function func(array &$ref){} call_user_func('func', 'not_an_array_variable');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, function "func" not found or invalid function name in /in/e3h8C:10 Stack trace: #0 /in/e3h8C(10): call_user_func('func', 'not_an_array_va...') #1 {main} thrown in /in/e3h8C on line 10
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: call_user_func(): Argument #1 ($callback) must be a valid callback, function "func" not found or invalid function name in /in/e3h8C:10 Stack trace: #0 /in/e3h8C(10): call_user_func('func', 'not_an_array_va...') #1 {main} thrown in /in/e3h8C on line 10
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Exception in /in/e3h8C:5 Stack trace: #0 [internal function]: Foo\{closure}(2, 'call_user_func(...', '/in/e3h8C', 10, Array) #1 /in/e3h8C(10): call_user_func('func', 'not_an_array_va...') #2 {main} thrown in /in/e3h8C on line 5
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Fatal error: Uncaught exception 'Exception' in /in/e3h8C:5 Stack trace: #0 [internal function]: Foo\{closure}(2, 'call_user_func(...', '/in/e3h8C', 10, Array) #1 /in/e3h8C(10): call_user_func('func', 'not_an_array_va...') #2 {main} thrown in /in/e3h8C on line 5
Process exited with code 255.

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