On Tue, 2002-06-11 at 23:21, William_dw -- Sqlcoders wrote:
> Hi there!,
> I'm trying to emulate a class destructor, according to the PHP documentation
> I can emulate this by using a call to register_shutdown_function(),
> containing the function to be called upon shutdown.
>
> While this apparently works outside a class, I want to use it inside a
> class, in other words I want to have something like this:
>
> class cRoute{
> function cRoute(){
> //register the shutdown function in case people who use this class
> dont call the appropiate close methods.
> register_shutdown_function("cleanup()");
> }
>
> function cleanup(){
> //cleanup.
> trigger_error("Please call close() before the page ends, to prevent
> problems close() has been called automatically for you.");
> $this->close();
> }
>
> function close(){
> //close open sockets, etc.
> }
> }
>
> I have tried:
> register_shutdown_function("cleanup()");
> register_shutdown_function("$this->cleanup()");
> register_shutdown_function($this->cleanup());
> register_shutdown_function("cDB::cleanup()");
>
> They all return something like: Warning: Unable to call ()() - function does
> not exist in Unknown on line 0
>From the manual page for register_shutdown_function():
http://www.php.net/register_shutdown_function
Note: Instead of a function name, an array containing an object
reference and a method name can also be supplied.
A simple test script:
<?php
error_reporting(E_ALL);
class foo {
function foo() {
echo "Constructing foo.\n";
}
function _foo() {
echo "Destroying foo.\n";
}
}
$foo = new foo();
register_shutdown_function(array($foo, '_foo'));
?>
Hope this helps,
Torben
> If anyone has any ideas I'd appreciate the help.
> Thanks in advance!,
> Dw.
>
>
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>
--
Torben Wilson <[EMAIL PROTECTED]>
http://www.thebuttlesschaps.com
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