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<?php var_dump([] ** []); var_dump([] ** (new ArrayObject())); var_dump((new ArrayObject()) ** []); var_dump([] ** (new stdClass())); var_dump((new stdClass()) ** []); class Foo {}; var_dump([] ** (new Foo())); var_dump((new Foo()) ** []);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: Unsupported operand types: array ** array in /in/lJKUn:3 Stack trace: #0 {main} thrown in /in/lJKUn on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
int(0) int(0) Notice: Object of class ArrayObject could not be converted to number in /in/lJKUn on line 5 int(1) int(0) Notice: Object of class stdClass could not be converted to number in /in/lJKUn on line 7 int(1) int(0) Notice: Object of class Foo could not be converted to number in /in/lJKUn on line 12 int(1)
Output for 7.3.32 - 7.3.33
int(0) int(0) int(1) int(0) int(1) int(0) int(1)
Output for 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
int(0) int(0) Notice: Object of class ArrayObject could not be converted to int in /in/lJKUn on line 5 int(1) int(0) Notice: Object of class stdClass could not be converted to int in /in/lJKUn on line 7 int(1) int(0) Notice: Object of class Foo could not be converted to int in /in/lJKUn on line 12 int(1)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Parse error: syntax error, unexpected '*' in /in/lJKUn on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/lJKUn 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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ')' in /in/lJKUn on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/lJKUn on line 3
Process exited with code 255.

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