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

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. -- Daniel Schierbeck