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Revision: 55239
at January 31, 2012 09:14 by phpexpert
Initial Code 
<?php

class Example
{
    // 1. Change your desired read-only property from public to protected.
    protected $name;

    // 2. Create this method and add your desired read-only public property.
    public function __get($property)
    {
        if ($property == 'name') { return $this->name; }
    }

    public function __construct($name) { $this->name = $name; }
}

// Demo:
$e = new Example("test");
echo $e->name . "\n"; // <-- Output: test
$e->name = 'asdf'; // <-- PHP Fatal error:  Cannot access protected property Example::$name
Initial URL 

                                

                                                            

                                    

                                        

                                        Initial Description
                                        

                                    

                                    
I like using public properties, as they greatly aid in API development and proper encapsulation.  Here's my solution for having the ease of public variable getting without the dangers of public variable setting.

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

                                    
PHP Read-Only Public Properties

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    
php

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
PHP