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<?php function test_1(int $arg_1, int $arg_2): int{ return $arg_1+$arg_2; } int $a = 1; int $b = 2; $result = test_1($a, $b); echo $result;
Output for 7.0.0
Parse error: syntax error, unexpected '$a' (T_VARIABLE) in /in/TBIB2 on line 6
Process exited with code 255.
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16
Parse error: syntax error, unexpected ':', expecting '{' in /in/TBIB2 on line 3
Process exited with code 255.

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