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<?php declare(strict_types = 1); function hello(string $s) : void { echo "$s\n"; } function fourtyTwo() : int { // returning wrong type return "42"; } // calling with wrong type try { hello(1234); } catch (Throwable $t) { echo $t; } fourtyTwo();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
TypeError: hello(): Argument #1 ($s) must be of type string, int given, called in /in/giu8Q on line 15 and defined in /in/giu8Q:4 Stack trace: #0 /in/giu8Q(15): hello(1234) #1 {main} Fatal error: Uncaught TypeError: fourtyTwo(): Return value must be of type int, string returned in /in/giu8Q:10 Stack trace: #0 /in/giu8Q(20): fourtyTwo() #1 {main} thrown in /in/giu8Q 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 TypeError: hello(): Argument #1 ($s) must be of type string, int given, called in /in/giu8Q on line 15 and defined in /in/giu8Q:4 Stack trace: #0 /in/giu8Q(15): hello(1234) #1 {main} Fatal error: Uncaught TypeError: fourtyTwo(): Return value must be of type int, string returned in /in/giu8Q:10 Stack trace: #0 /in/giu8Q(20): fourtyTwo() #1 {main} thrown in /in/giu8Q on line 10
Process exited with code 255.
Output for 7.3.24 - 7.3.33, 7.4.12 - 7.4.33
TypeError: Argument 1 passed to hello() must be of the type string, int given, called in /in/giu8Q on line 15 and defined in /in/giu8Q:4 Stack trace: #0 /in/giu8Q(15): hello(1234) #1 {main} Fatal error: Uncaught TypeError: Return value of fourtyTwo() must be of the type int, string returned in /in/giu8Q:10 Stack trace: #0 /in/giu8Q(20): fourtyTwo() #1 {main} thrown in /in/giu8Q on line 10
Process exited with code 255.
Output for 7.1.7
TypeError: Argument 1 passed to hello() must be of the type string, integer given, called in /in/giu8Q on line 15 and defined in /in/giu8Q:4 Stack trace: #0 /in/giu8Q(15): hello(1234) #1 {main} Fatal error: Uncaught TypeError: Return value of fourtyTwo() must be of the type integer, string returned in /in/giu8Q:10 Stack trace: #0 /in/giu8Q(20): fourtyTwo() #1 {main} thrown in /in/giu8Q on line 10
Process exited with code 255.

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