runkit_class_adopt

(PECL runkit >= 0.7.0)

runkit_class_adopt Convert a base class to an inherited class, add ancestral methods when appropriate

Description

bool runkit_class_adopt ( string $classname , string $parentname )

Parameters

classname

Name of class to be adopted

parentname

Parent class which child class is extending

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 A runkit_class_adopt() example

<?php
class myParent {
  function 
parentFunc() {
    echo 
"Parent Function Output\n";
  }
}

class 
myChild {
}

runkit_class_adopt('myChild','myParent');
myChild::parentFunc();
?>

The above example will output:

Parent Function Output

See Also

Коментарии

Function visibility (in PHP5) has some quirks as compared to the normal behavior with "extends".  Consider the following:

<?php
   
class base {
        public function 
a() { $this->b(); }
        private function 
b() { echo "This is b()"; }
    }
?>

This will work fine:
<?php
   
class inherit extends base {
        public function 
c() { $this->a(); }
    }

   
$x = new inherit;
   
$x->c();
?>

while this:
<?php
   
class adopt {
        public function 
c() { $this->a(); }
    }
   
runkit_class_adopt('adopt','base');
   
$x = new adopt;
   
$x->c();
?>

will generate a fatal "Call to private method base::b() from context 'adopt'" error.  Protected members can be called from the inherited methods, but still cannot be called from the original class (i.e. if b() were declared protected, the example would work as written, but adopt::c() still could not call base::b() directly.

Functions such as is_subclass_of(), is_a(), and the instanceof operator also do not detect the new lineage of the object; if you are using this function to simulate multiple or dynamic inheritance, you may need to implement your own method of determining class lineage.

[EDIT by danbrown AT php DOT net: Merged addendum to post by original author.]
2005-09-02 18:09:45
http://php5.kiev.ua/manual/ru/function.runkit-class-adopt.html

    Поддержать сайт на родительском проекте КГБ