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<?php function a(array ...$a) { return array_merge($a, $a); } $a = [1, 2, 3]; $b = 4; $c = a($a, $b); // $c = [1, 2, 3, 4] var_dump($c);
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: a(): Argument #2 must be of type array, int given, called in /in/i2fGO on line 6 and defined in /in/i2fGO:3 Stack trace: #0 /in/i2fGO(6): a(Array, 4) #1 {main} thrown in /in/i2fGO 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 TypeError: a(): Argument #2 must be of type array, int given, called in /in/i2fGO on line 6 and defined in /in/i2fGO:3 Stack trace: #0 /in/i2fGO(6): a(Array, 4) #1 {main} thrown in /in/i2fGO on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 2 passed to a() must be of the type array, int given, called in /in/i2fGO on line 6 and defined in /in/i2fGO:3 Stack trace: #0 /in/i2fGO(6): a(Array, 4) #1 {main} thrown in /in/i2fGO on line 3
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
Fatal error: Uncaught TypeError: Argument 2 passed to a() must be of the type array, integer given, called in /in/i2fGO on line 6 and defined in /in/i2fGO:3 Stack trace: #0 /in/i2fGO(6): a(Array, 4) #1 {main} thrown in /in/i2fGO on line 3
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Catchable fatal error: Argument 2 passed to a() must be of the type array, integer given, called in /in/i2fGO on line 6 and defined in /in/i2fGO on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/i2fGO on line 3
Process exited with code 255.

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