Francisco M. Marzoa Alonso wrote:
Hi,
I'm trying to wrote my own serialization routines and I've found a
previsible problem: protected members are not visible to my
serialization routine. This is ok and it should be as is, but I've seen
that PHP's serialize function have access to that members anyway, so the
question is: Is there any kind of hack that I can use to access those
variables from my own serialization routine?
Thx. a lot in advance,
An easy hack to get private / protected members:
class read_only_hack {
// overload the get "magic" function
function __get($var) {
return $this->$var;
}
}
Another way that should work (untested):
class serialize_me {
function __sleep() {
$copy = clone($this);
// inside your class, so you can access private and push onto array
$copy->_private_vars = array();
$copy->_protected_vars = array();
return $copy;
}
// object being unserialized, so now you assign the properties
function __wakeup() {
foreach ($this->_protected_vars as $key=>$val) {
$this->$key = $val;
}
foreach ($this->_private_vars as $key=>$val) {
$this->$key = $val;
}
unset ($this->_private_vars, $this->_protected_vars);
}
}
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