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run code in 150+ php & hhvm versions
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<?php interface Log { public function alert($message); } class EchoLog implements Log { public function alert($message) { echo $message; } } class TestLog { private $log; const TEST = ['hoi']; public function __construct(Log $log) { $this->log = $log; } public function run() { $this->log->alert($this->TEST[0]); } } $testLog = new TestLog(new EchoLog()); $testLog->run();
based on vZoq0
Output for 5.6.7 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined property: TestLog::$TEST in /in/CBONk on line 23
Output for 5.4.0 - 5.5.35, hhvm-3.12.0
Fatal error: Arrays are not allowed in class constants in /in/CBONk on line 16
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/CBONk on line 16
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/CBONk on line 16
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/CBONk on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/CBONk on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/CBONk on line 2
Process exited with code 255.