Re: 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

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