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<?php declare(strict_types = 1); phpversion() >= "7.0.0" or die(); class FooBar { public $prop = '123'; } class BarFoo { public $prop = '312'; } function test () : FooBar { return new FooBar; } function test1 () : BarFoo { return new FooBar; } @var_dump(test1()); var_dump(test());
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
Fatal error: Uncaught TypeError: Return value of test1() must be an instance of BarFoo, instance of FooBar returned in /in/H4WGu:19 Stack trace: #0 /in/H4WGu(23): test1() #1 {main} thrown in /in/H4WGu on line 19
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Warning: Unsupported declare 'strict_types' in /in/H4WGu on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/H4WGu on line 14
Process exited with code 255.
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129.89 ms | 402 KiB | 196 Q