<?php
class billing{
private $cache=array();
public function resetCache(){
$this->cache=array();
return $this;
}
}
class billing_info extends billing{
public function getPassword()
{
return $this->resetCache();
}
}
$o=new billing_info;
var_dump($o->resetCache());
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
object(billing_info)#1 (1) {
["cache":"billing":private]=>
array(0) {
}
}