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<?php interface A { public function foo(); } interface B extends A { public function bar(); } interface C { public function exec(A $obj); } class TestB implements B {  public function bar() { echo 'bar';} public function foo() { echo 'foo';} } class Test implements C { public function exec(B $obj) { $obj->foo(); } } $testB = new TestB; $test = new Test; $test->exec($testB);
Output for 8.3.0 - 8.3.6
Parse error: syntax error, unexpected character 0x1D, expecting "function" in /in/NlE1f on line 16
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Parse error: syntax error, unexpected character 0x1D, expecting "function" or "const" in /in/NlE1f on line 16
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Unexpected character in input: '' (ASCII=29) state=0 in /in/NlE1f on line 16 Warning: Unexpected character in input: '' (ASCII=29) state=0 in /in/NlE1f on line 16 Fatal error: Declaration of Test::exec(B $obj) must be compatible with C::exec(A $obj) in /in/NlE1f on line 21
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Unexpected character in input: '' (ASCII=29) state=0 in /in/NlE1f on line 16 Warning: Unexpected character in input: '' (ASCII=29) state=0 in /in/NlE1f on line 16 Fatal error: Declaration of Test::exec(B $obj) must be compatible with C::exec(A $obj) in /in/NlE1f on line 20
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Unexpected character in input: '' (ASCII=29) state=0 in /in/NlE1f on line 16 Warning: Unexpected character in input: '' (ASCII=29) state=0 in /in/NlE1f on line 16 Fatal error: Declaration of Test::exec() must be compatible with C::exec(A $obj) in /in/NlE1f on line 20
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Warning: Unexpected character in input: '' (ASCII=29) state=0 in /in/NlE1f on line 16 Warning: Unexpected character in input: '' (ASCII=29) state=0 in /in/NlE1f on line 16 Fatal error: Declaration of Test::exec() must be compatible with that of C::exec() in /in/NlE1f on line 20
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Unexpected character in input: '' (ASCII=29) state=1 in /in/NlE1f on line 16 Warning: Unexpected character in input: '' (ASCII=29) state=1 in /in/NlE1f on line 16 Fatal error: Declaration of Test::exec() must be compatible with that of C::exec() in /in/NlE1f on line 20
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/NlE1f on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/NlE1f on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/NlE1f on line 3
Process exited with code 255.

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