(PHP 4, PHP 5, PHP 7)
get_parent_class — ���ض������ĸ�����
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PHP 4.0.5 �����ӵġ�
Note:
�� PHP 5 ������ڶ���ķ����ڵ��ã���
objΪ��ѡ�
Example #1 ʹ�� get_parent_class()
<?php
class dad {
function dad()
{
// implements some logic
}
}
class child extends dad {
function child()
{
echo "I'm " , get_parent_class($this) , "'s son\n";
}
}
class child2 extends dad {
function child2()
{
echo "I'm " , get_parent_class('child2') , "'s son too\n";
}
}
$foo = new child();
$bar = new child2();
?>
�������̻������
I'm dad's son I'm dad's son too
�μ� get_class() �� is_subclass_of()��
objectThe tested object or class name
Returns the name of the parent class of the class of which
object is an instance or the name.
Note:
If the object does not have a parent or the class given does not exist
FALSEwill be returned.
If called without parameter outside object, this function returns FALSE.
| �汾 | ˵�� |
|---|---|
| Before 5.1.0 |
If called without parameter outside object, this function would have
returned NULL with a warning.
|
| Since 5.0.0 |
The object parameter is optional if called
from the object's method.
|
| Since 4.0.5 |
If object is a string, returns the name of the
parent class of the class with that name.
|
Example #2 Using get_parent_class()
<?php
class dad {
function dad()
{
// implements some logic
}
}
class child extends dad {
function child()
{
echo "I'm " , get_parent_class($this) , "'s son\n";
}
}
class child2 extends dad {
function child2()
{
echo "I'm " , get_parent_class('child2') , "'s son too\n";
}
}
$foo = new child();
$bar = new child2();
?>
�������̻������
I'm dad's son I'm dad's son too