3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php declare(strict_types=1); function a(float b): string { return b; } echo a(4.0);
based on TiiZg
Output for 7.0.0
Parse error: syntax error, unexpected 'b' (T_STRING), expecting variable (T_VARIABLE) in /in/aEI2h on line 3
Process exited with code 255.
Output for 5.6.8 - 5.6.16
Warning: Unsupported declare 'strict_types' in /in/aEI2h on line 2 Parse error: syntax error, unexpected 'b' (T_STRING), expecting variable (T_VARIABLE) in /in/aEI2h on line 3
Process exited with code 255.
Output for 5.4.10 - 5.5.30
Warning: Unsupported declare 'strict_types' in /in/aEI2h on line 2 Parse error: syntax error, unexpected 'b' (T_STRING), expecting '&' or variable (T_VARIABLE) in /in/aEI2h on line 3
Process exited with code 255.
Output for 5.3.20 - 5.3.29
Warning: Unsupported declare 'strict_types' in /in/aEI2h on line 2 Parse error: syntax error, unexpected T_STRING, expecting '&' or T_VARIABLE in /in/aEI2h on line 3
Process exited with code 255.