Comments on: Read-only object variables in php using magic methods http://cormacscode.wordpress.com/2009/01/22/read-only-object-variables-in-php-using-magic-methods/ Web / internet development, mostly using php / mysql Wed, 28 Oct 2009 04:37:28 +0000 http://wordpress.com/ hourly 1 By: cormacscode http://cormacscode.wordpress.com/2009/01/22/read-only-object-variables-in-php-using-magic-methods/#comment-314 cormacscode Fri, 03 Apr 2009 10:12:20 +0000 http://cormacscode.wordpress.com/?p=78#comment-314 AFAIK you <strong>can't</strong> have read-only object variables without __get() and __set() methods. If you can access a variable you can read it <strong>and</strong> modify it. Am I wrong? Do you know something I don't? How the code above works is access to the variable is set to private, so it can't be accessed at all from outside the object, and then I use the __get() method to allow it to be read. The empty __set() method is just there to stop an exception being thrown if you try to modify the variable AFAIK you can’t have read-only object variables without __get() and __set() methods. If you can access a variable you can read it and modify it. Am I wrong? Do you know something I don’t?
How the code above works is access to the variable is set to private, so it can’t be accessed at all from outside the object, and then I use the __get() method to allow it to be read. The empty __set() method is just there to stop an exception being thrown if you try to modify the variable

]]> By: Roy http://cormacscode.wordpress.com/2009/01/22/read-only-object-variables-in-php-using-magic-methods/#comment-313 Roy Fri, 03 Apr 2009 10:01:13 +0000 http://cormacscode.wordpress.com/?p=78#comment-313 I understand that the private/public/protected are the access specifiers in oops. where as in your example the variable is defined as private so its scope is limited to only that class. But I am bit confuse about the relation between __get() method and making variable readonly. I mean we can have read only variables without __get n __set methods. can u please explain more on this I understand that the private/public/protected are the access specifiers in oops. where as in your example the variable is defined as private so its scope is limited to only that class.

But I am bit confuse about the relation between __get() method and making variable readonly. I mean we can have read only variables without __get n __set methods.

can u please explain more on this

]]>