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<?php function fct_add(float $a, float $b): float { return 'a + b: ' . $a + $b; } print fct_add(.1, .2); # float(3)
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: fct_add(): Return value must be of type float, string returned in /in/1APfE:3 Stack trace: #0 /in/1APfE(6): fct_add(0.1, 0.2) #1 {main} thrown in /in/1APfE 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: fct_add(): Return value must be of type float, string returned in /in/1APfE:3 Stack trace: #0 /in/1APfE(6): fct_add(0.1, 0.2) #1 {main} thrown in /in/1APfE on line 3
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /in/1APfE on line 3 Warning: A non-numeric value encountered in /in/1APfE on line 3 0.2
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: A non-numeric value encountered in /in/1APfE on line 3 0.2
Output for 7.0.0 - 7.0.33
0.2
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected ':', expecting '{' in /in/1APfE on line 2
Process exited with code 255.

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