<?php
class DB
{
protected static $table=’basetable’;
public function select()
{
echo “SELECT * FROM “.static::$table;
}
public function insert()
{
echo “Insert into “. static::$table;
}}
class abc extends DB { protected static $table=”abc”;

}
class userAccounts extends DB {

protected static $xyz=”user_accounts”;
}
$accounts=new userAccounts();
$abc=new abc();
$abc->select();
$accounts->select();
?>