3v4l.org

run code in 200+ php & hhvm versions
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<?php function f(int $a) : string { return (string)$a; } var_dump(f(5));
Output for 7.0.0 - 7.2.0
string(1) "5"
Output for 5.3.20 - 5.6.28
Parse error: syntax error, unexpected ':', expecting '{' in /in/QZ1Zb on line 3
Process exited with code 255.