cvs: ZendEngine2 / ZEND_CHANGES

sebastian Sat Dec 7 11:47:44 2002 EDT Modified files: /ZendEngine2 ZEND_CHANGES Log: Update. Index: ZendEngine2/ZEND_CHANGES diff -u ZendEngine2/ZEND_CHANGES:1.43 ZendEngine2/ZEND_CHANGES:1.44 --- ZendEngine2/ZEND_CHANGES:1.43 Wed Nov 20 14:15:36 2002 +++ ZendEngine2/ZEND_CHANGES Sat Dec 7 11:47:44 2002 @@ -21,9 +21,10 @@ * Private and Protected Members. - The Zend Engine 2.0 introduces private and protected member variables. - Note that for performance reasons no error message is emitted in - case of an illegal access to a private or protectecd member variable. + The Zend Engine 2.0 introduces private and protected member + variables. Note that for performance reasons no error message is + emitted in case of an illegal access to a private or protectecd + member variable. Example: @@ -34,9 +35,9 @@ protected $Foo = "Hello, Bar!\n"; function printHello() { - print "MyClass::printHello() ".$this->Hello; - print "MyClass::printHello() ".$this->Bar; - print "MyClass::printHello() ".$this->Foo; + print "MyClass::printHello() " . $this->Hello; + print "MyClass::printHello() " . $this->Bar; + print "MyClass::printHello() " . $this->Foo; } } @@ -44,10 +45,10 @@ protected $Foo; function printHello() { - MyClass::printHello(); /* Should print */ - print "MyClass2::printHello() ".$this->Hello; /* Shouldn't print out anything */ - print "MyClass2::printHello() ".$this->Bar; /* Shouldn't print (not declared)*/ - print "MyClass2::printHello() ".$this->Foo; /* Should print */ + MyClass::printHello(); /* Should print */ + print "MyClass2::printHello() " . $this->Hello; /* Shouldn't print out anything */ + print "MyClass2::printHello() " . $this->Bar; /* Shouldn't print (not declared)*/ + print "MyClass2::printHello() " . $this->Foo; /* Should print */ } } @@ -64,13 +65,15 @@ $obj->printHello(); ?> - Protected member variables can be accessed in classes extending the class - they are declared in, whereas private member variables can only be accessed - by the class they belong to. - - Note: Protected member variables have to be declared in every class they - are used! + Protected member variables can be accessed in classes extending the + class they are declared in, whereas private member variables can + only be accessed by the class they belong to. + + Note: Protected member variables have to be declared in every class + they are used! + * Private and protected methods. (TBD) + * Object Cloning. The Zend Engine 1.0 offered no way a user could decide what copy @@ -489,12 +492,13 @@ print foo::$my_static; ?> - * Static methods (TBD) + * Static methods. (TBD) - * Abstract methods (TBD) + * Abstract methods. (TBD) - * static function variables - statics are now treated at compile-time which allows developers + * Static function variables. + + Statics are now treated at compile-time which allows developers to assign variables to statics by reference. This change also greatly improves their performance but means that indirect references to statics will not work anymore. @@ -509,36 +513,6 @@ if ($var === null) { die('$var needs to have a value'); } - } - ?> - - * Built-In Backtracing. - - Example: - - <?php - $backtrace = debug_backtrace(); - - foreach ($backtrace as $step) { - if (!empty($step['args'])) { - foreach ($step['args'] as $arg) { - $args = isset($args) ? $args . ', ' : ''; - $args .= var_export($arg, true); - } - } else { - $args = ''; - } - - $args = str_replace(array("\n", ',)'), array('', ')'), $args); - - printf( - "%s%s(%s) [%s:%s]\n", - isset($step['class']) ? $step['class'] . '::' : '', - $step['function'], - $args, - $step['file'], - $step['line'] - ); } ?>