- var_dump: documentation ( source)
- gc_collect_cycles: documentation ( source)
- serialize: documentation ( source)
- gc_enabled: documentation ( source)
<?php
var_dump(gc_enabled());
$objstore = new SplObjectStorage();
$objstore->attach(new StdClass);
$objstore->attach(new StdClass);
$objstore->attach(new StdClass);
gc_collect_cycles();
var_dump($objstore);
print serialize($objstore);