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run code in 200+ php & hhvm versions
Bugs & Features
<?php function testReturn(): ?string { return null; } var_dump(testReturn()); ?>
based on NaPGX
Output for 7.1.0 - 7.3.0alpha1
NULL
Output for 7.0.0 - 7.0.20
Parse error: syntax error, unexpected '?' in /in/92rbW on line 3
Process exited with code 255.
Output for hhvm-3.12.14 - 3.17.3
Fatal error: Uncaught Error: Syntax only allowed in Hack files (<?hh) or with -v Eval.EnableHipHopSyntax=true in /in/92rbW:3 Stack trace: #0 {main}
Process exited with code 255.
Output for 5.6.0 - 5.6.30
Parse error: syntax error, unexpected ':', expecting '{' in /in/92rbW on line 3
Process exited with code 255.