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run code in 200+ php & hhvm versions
Bugs & Features
<?php function f(int $i){} var_dump( (int)null ); // casting null to int works fine f('1'); // string is coerced fine f(null); // null is not coerced at all
based on RDKKK
Output for 7.0.0 - 7.2.6
int(0) Fatal error: Uncaught TypeError: Argument 1 passed to f() must be of the type integer, null given, called in /in/mkr9a on line 7 and defined in /in/mkr9a:3 Stack trace: #0 /in/mkr9a(7): f(NULL) #1 {main} thrown in /in/mkr9a on line 3
Process exited with code 255.
Output for 5.6.0 - 5.6.27
int(0) Catchable fatal error: Argument 1 passed to f() must be an instance of int, string given, called in /in/mkr9a on line 6 and defined in /in/mkr9a on line 3
Process exited with code 255.