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<?php class Foo { protected static $_foo = 'foo'; public function isMatch() { var_dump($this->_foo); var_dump(self::$_foo); } } class Bar extends Foo { protected $_foo = 'bar'; } $a = new Bar(); var_dump($a->isMatch());
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.29, 5.6.7 - 5.6.13
Fatal error: Cannot redeclare static Foo::$_foo as non static Bar::$_foo in /in/59J2I on line 14
Process exited with code 255.

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