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run code in 150+ php & hhvm versions
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<?php class C { private $prop; public function __construct($val) { $this->prop = $val; } public function __debugInfo() { return [ 'propSquared' => $this->prop, ]; } } var_dump(new C(42));
based on ZgEVU
Output for 5.6.7 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
object(C)#1 (1) { ["propSquared"]=> int(42) }
Output for 5.4.0 - 5.5.35
object(C)#1 (1) { ["prop":"C":private]=> int(42) }
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/OJYk0 on line 10
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/OJYk0 on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/OJYk0 on line 3
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, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/OJYk0 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/OJYk0 on line 3
Process exited with code 255.