Re: Pb : access control

here a code to test private variables <?php // test private variables class foo { private $name = "foo"; function __construct() { $this->name = "foo2"; } } class baz extends foo { function show() { echo "> name : $this->name \n"; } } $test = new baz(); $test->show(); echo " name : $test->name \n"; ?> this code expose the variable foo2 in the baz object (method show) which normally can't be visible (private variable of the parent class), and expose the variable in the main context. Normally a fatal error must be generated when accessing private variables in the main context (echo " name : $test->name \n";) and in the inheritance context ($test->show();) Hope that will help debug PHP5 Fabrice Le Coz fabrice.lecoz@zedesk.com ----- Original Message ----- From: "Andi Gutmans" <andi@zend.com> To: "Fabrice Le Coz" <fabrice.lecoz@zedesk.com>; <php-dev@lists.php.net> Sent: Monday, March 17, 2003 9:00 PM Subject: Re: [PHP-DEV] Pb : access control > Can you cut down the script to like 10 lines and say what your result is > and what you'd expect? > > At 05:37 PM 3/17/2003 +0100, Fabrice Le Coz wrote: > >Hi, > > > >I'm playing with PHP5 and have some trouble wtith access control, here's the > >code I run with last php5 from snaps.php.net under windows XP : > > > ><?php > >class pere { > > private $var3; > > public $var1; > > protected $var2; > > > > function __construct() { > > $this->var1 = "public"; > > $this->var2 = "protected"; > > $this->var3 = "private"; > > } > > > > function show() { > > echo "pere::show() \n"; > > echo "var1 : $this->var1\n"; > > echo "var2 : $this->var2\n"; > > echo "var3 : $this->var3\n"; > > echo "\n"; > > } > >} > > > >class fils extends pere { > > protected $var = "fils"; > > private $var4 = "test"; > > > > function __construct() { > > parent::__construct(); > > } > > > > function show_fils() { > > echo "fils::show() \n"; > > echo "var1 : $this->var1\n"; > > echo "var2 : $this->var2\n"; > > echo "var3 : $this->var3\n"; > > echo "var : $this->var\n"; > > echo "\n"; > > } > >} > > > >function show_var($obj) { > > $obj_vars = get_object_vars($obj); > > foreach ($obj_vars as $name => $value) { > > if($name != "") echo "$name : $value\n"; > > } > > echo "\n"; > >} > > > >$test1 = new pere(); > >$test1->show(); > >echo "Affichage des variables visibles de test1 :\n"; > >show_var($test1); > > > >$test2 = new fils(); > >$test2->show_fils(); > >echo "Affichage des variables visibles de test2 :\n"; > >show_var($test2); > >$test2->show(); > >echo "var3 : ".$test2->var3."\n"; > >echo "var4 : ".$test2->var4."\n"; > >?> > > > >and I've the following result : > > > >pere::show() > >var1 : public > >var2 : protected > >var3 : private > > > >Affichage des variables visibles de test1 : > >var1 : public > > > >fils::show() > >var1 : public > >var2 : protected > >var3 : private > >var : fils > > > >Affichage des variables visibles de test2 : > >var1 : public > >var2 : > >var3 : private > > > >pere::show() > >var1 : public > >var2 : protected > >var3 : private > > > >var3 : private > > > >Fatal error: Cannot access private property fils::$var4 in > >D:\www\test\heritier.php on line 59 > > > >Normally in the instance of "fils" object ($test2), I mustn't see > >$this->var3 which is private variable of the parent. if I comment the line > >'echo "var3 : $this->var3\n";' in the show_fils method, > >$test2->var3 is > >empty but do not generate an error ! > >The show_var($test2) function expose a var2 variable which normally must > >send an Fatal error. > > > > Fabrice Le Coz > > fabrice.lecoz@zedesk.com > >