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<?php class Concrete5_Helper_Foo { public static function get() { return self::getFirstName(); } protected $firstName = 'James'; public function getFirstName() { return $firstName; } } class Foo extends Concrete5_Helper_Foo { protected $firstName = 'Chris'; } var_dump(get_class(Concrete5_Helper_Foo::get())); var_dump(get_class(Foo::get())); var_dump(get_class(Foo::get()->getFirstName()));
Output for 7.0.0 - 7.1.0
Deprecated: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() called without object from outside a class in /in/qQ1p6 on line 25 bool(false) Deprecated: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() called without object from outside a class in /in/qQ1p6 on line 26 bool(false) Deprecated: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Fatal error: Uncaught Error: Call to a member function getFirstName() on null in /in/qQ1p6:27 Stack trace: #0 {main} thrown in /in/qQ1p6 on line 27
Process exited with code 255.
Output for hhvm-3.12.0
Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() called without object from outside a class in /in/qQ1p6 on line 25 bool(false) Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() called without object from outside a class in /in/qQ1p6 on line 26 bool(false) Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Fatal error: Uncaught exception 'BadMethodCallException' with message 'Call to a member function getFirstName() on a non-object (null)' in /in/qQ1p6:27 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.6.8 - 5.6.21
Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() called without object from outside a class in /in/qQ1p6 on line 25 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() called without object from outside a class in /in/qQ1p6 on line 26 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Fatal error: Call to a member function getFirstName() on null in /in/qQ1p6 on line 27
Process exited with code 255.
Output for 5.3.1 - 5.5.35
Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() called without object from outside a class in /in/qQ1p6 on line 25 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() called without object from outside a class in /in/qQ1p6 on line 26 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Fatal error: Call to a member function getFirstName() on a non-object in /in/qQ1p6 on line 27
Process exited with code 255.
Output for 5.3.0
Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() expects parameter 1 to be object, null given in /in/qQ1p6 on line 25 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Warning: get_class() expects parameter 1 to be object, null given in /in/qQ1p6 on line 26 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Fatal error: Call to a member function getFirstName() on a non-object in /in/qQ1p6 on line 27
Process exited with code 255.
Output for 5.0.4 - 5.2.17
Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Fatal error: Call to a member function getFirstName() on a non-object in /in/qQ1p6 on line 27
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 bool(false) Strict Standards: Non-static method Concrete5_Helper_Foo::getFirstName() should not be called statically in /in/qQ1p6 on line 6 Notice: Undefined variable: firstName in /in/qQ1p6 on line 13 Fatal error: Call to a member function getFirstName() on a non-object in /in/qQ1p6 on line 27
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/qQ1p6 on line 4
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/qQ1p6 on line 4
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/qQ1p6 on line 4
Process exited with code 255.