假设我有一个用户定义类的对象数组。想知道如何在PHP中提取数组的元素。PHP Array提取对象
// class definition
class User
{
public $fname;
public $lname;
}
// array of objects of the class defined above
$objUser1 = new User():
$objUser2 = new User():
$objUser3 = new User():
$objUser4 = new User():
$alUser = array();
$alUser[] = $objUser1;
$alUser[] = $objUser2;
$alUser[] = $objUser3;
$alUser[] = $objUser4;
// trying to iterate and extract values using typcasting - this does not work, what is the alternative.
foreach($alUser as $user)
{
$obj = (User) $user; // gives error - unexpected $user;
}
这就是我如何使用java做的,同时提取了Java的ArrayList对象,因此认为PHP的方法可能是相似的。任何人都可以解释它。