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PHP : Function Reference : Class/Object Functions : get_parent_class

get_parent_class

Retrieves the parent class name for object or class (PHP 4, PHP 5)
string get_parent_class ( [mixed object] )

Example 381. Using get_parent_class()

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<?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();

?>

The above example will output:

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I'm dad's son
I'm dad's son too

Related Examples ( Source code ) » get_parent_class

Examples ( Source code ) » get_parent_class

Code Examples / Notes » get_parent_class

eric dot brison
To return all ancestors class of an object
function get_ancestors_class($classname) {
 $father = get_parent_class($classname);
 if ($father != "") {
   $ancestors = get_ancestors_class($father);
   $ancestors[] = $father;
 }
 return $ancestors;
}
example :
-----------
Class C  {
}
Class B extends C {
}
Class A extends B {
}
print_r (get_ancestors_class("a"));
print_r (get_ancestors_class("b"));
example result :
---------------
Array
(
   [0] => c
   [1] => b
)
Array
(
   [0] => c
)

birkholz
tim at correctclick dot com wrote:
<quote>
A slightly more cryptic but faster get_ancestors function:
<?php
function get_ancestors ($class) {
         
    for ($classes[] = $class; $class = get_parent_class ($class); $classes[] = $class);
    return $classes;
     
}
?>
(The second part of the for is implicitly testing for $class != "").  Recursion is considerably slower than looping, so you probably want to use this function.
Hope someone finds it useful.
</quote>
I would prefer this version, because it will create no duplicates:
<?php
function get_ancestors ($class) {
$classes = array($class);
while($class = get_parent_class($class)) { $classes[] = $class; }
return $classes;
}
Greets, Dennis
?>

matt-php
PHP (4 at least, dunno about 5) stores classnames in lower case, so:
<?PHP
class Foo
{
}
class Bar extends Foo
{
}
echo get_parent_class('Bar');
echo "\n";
echo get_parent_class('bar');
?>
will output:
foo
foo

radu dot rendec
If the argument obj is a string and the class is not defined, then the function returns FALSE.
If the argument obj is an object created from a class with no ancestors (or a string representing a class with no ancestors), then the function returns FALSE.

tim
A slightly more cryptic but faster get_ancestors function:
function get_ancestors ($class) {

     for ($classes[] = $class; $class = get_parent_class ($class); $classes[] = $class);
     return $classes;

}
(The second part of the for is implicitly testing for $class != "").  Recursion is considerably slower than looping, so you probably want to use this function.
Hope someone finds it useful.

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