Re: Re: [PHP5]__get, __set and isset()

Bug Id is 29917. Fred. Daniel Schierbeck wrote:

Frédéric hardy wrote:

Is it possible to do something like this : class foo {

    private $array = array();

    function __construct()
    {
        ...
    }

    function __get($key)
    {
        return (isset($this->array[$key]) == false ? null : $this->array[$key]);
    }

    function __set($key, $value)
    {
        $this->array[$key] = $value;
    }

} $foo = new foo(); if (isset($foo->bar) == false)

    $foo->bar = 'bar';

else

    echo $foo->bar;

It seems that isset($foo->bar) return ALWAYS false. Bug ? Fred.

It seems that you are right. I've tried off this code:

    <?php

    class OO
    {
        private $elem = array("a" => 1);
            public function __get ($prop)
        {
            if (isset($this->elem[$prop])) {
                return $this->elem[$prop];
            } else {
                return NULL;
            }
        }
            public function __set ($prop, $val)
        {
            $this->elem[$prop] = $val;
        }
    }

    $o = new OO();

    echo isset($o->a) ? "yes\n" : "no\n";
    echo isset($o->b) ? "yes\n" : "no\n";

    echo is_null($o->a) ? "yes\n" : "no\n";
    echo is_null($o->b) ? "yes\n" : "no\n";

    ?>

I expected something like this:

    yes
    no
    no
    yes

But got this:

    no
    no
    no
    yes

It looks like isset() can't handle object properties correctly. I'll post the bug on php.net.

-- =================================================================== Frederic HARDY Email: fch@hexanet.fr HEXANET SARL URL: http://www.hexanet.fr/ ZAC Les Charmilles Tel: +33 (0)3 26 79 30 05 3, allée Thierry Sabine Direct: +33 (0)3 26 61 77 84 BP 202 - 51686 REIMS CEDEX 2 FRANCE ===================================================================