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<?php function foo($aaa):?float { return '1aaa'; } var_dump(foo(123));
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: foo(): Return value must be of type ?float, string returned in /in/aVJUd:3 Stack trace: #0 /in/aVJUd(6): foo(123) #1 {main} thrown in /in/aVJUd 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: foo(): Return value must be of type ?float, string returned in /in/aVJUd:3 Stack trace: #0 /in/aVJUd(6): foo(123) #1 {main} thrown in /in/aVJUd on line 3
Process exited with code 255.
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.4 - 7.4.33
Notice: A non well formed numeric value encountered in /in/aVJUd on line 3 float(1)
Output for 7.3.32 - 7.3.33
float(1)

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