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run code in 150+ php & hhvm versions
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<?php class Foo { public static $class_prop = 'class_property'; public $object_prop = 'object_property'; static function printClassProp() { //print 'prefix_' . self::$static_prop . '_postfix' . PHP_EOL; print "prefix_{self::$class_prop}_postfix" . PHP_EOL; print "prefix_{\\self::$class_prop}_postfix" . PHP_EOL; // <-- issue here } function printObjectProp() { print "prefix_{$this->object_prop}_postfix" . PHP_EOL; } } $foo = new Foo; $foo->printObjectProp(); Foo::printClassProp();
Output for 5.0.4 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
prefix_object_property_postfix Notice: Undefined variable: class_prop in /in/kXlEb on line 10 prefix_{self::}_postfix Notice: Undefined variable: class_prop in /in/kXlEb on line 11 prefix_{\self::}_postfix
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.2 - 5.0.3
prefix_object_property_postfix Notice: Undefined variable: class_prop in /in/kXlEb on line 10 prefix_{self::}_postfix Notice: Undefined variable: class_prop in /in/kXlEb on line 11 prefix_{\self::}_postfix
Output for 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/kXlEb on line 15 prefix_object_property_postfixPHP_EOL Notice: Undefined variable: class_prop in /in/kXlEb on line 10 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/kXlEb on line 10 prefix_{self::}_postfixPHP_EOL Notice: Undefined variable: class_prop in /in/kXlEb on line 11 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/kXlEb on line 11 prefix_{\self::}_postfixPHP_EOL
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/kXlEb on line 5
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/kXlEb on line 5
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/kXlEb on line 5
Process exited with code 255.