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<?php declare(strict_types=1); class OriginalClass { public function adopt(string $name): string { return $name; } } class XClass extends OriginalClass { public function adopt($name): string { return (string)$name; } } print (new XClass())->adopt(1);
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
1
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 1
Output for 7.0.6 - 7.0.33, 7.1.0 - 7.1.33
Warning: Declaration of XClass::adopt($name): string should be compatible with OriginalClass::adopt(string $name): string in /in/Y7Q4W on line 18 1
Output for 7.0.0 - 7.0.5
Fatal error: Declaration of XClass::adopt($name): string must be compatible with OriginalClass::adopt(string $name): string in /in/Y7Q4W on line 18
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 - 5.6.40
Warning: Unsupported declare 'strict_types' in /in/Y7Q4W on line 2 Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/Y7Q4W on line 6
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/Y7Q4W on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected ':', expecting '{' or ';' in /in/Y7Q4W on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Y7Q4W on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Y7Q4W on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/Y7Q4W on line 6
Process exited with code 255.

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