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Bug #58521 runkit_class_adopt doesn't work as expected
Submitted: 2009-01-27 04:57 UTC Modified: 2013-02-23 18:33 UTC
From: luka8088 at gmail dot com Assigned: pollita (profile)
Status: Closed Package: runkit (PECL)
PHP Version: 5.2.5 OS: Windows
Private report: No CVE-ID: None
 [2009-01-27 04:57 UTC] luka8088 at gmail dot com
I think this should work without errors.... And that would make runkit very useful for dynamic inheritance ... This is an example how to use one universal sql object that would load proper sql driver dynamically ... 

Reproduce code:

class sql_mysql {
  function connect () {
    $this->link = 'Mysql Link';

class sql_oracle {
  function connect () {
    $this->link = 'Oracle Link';

class sql {

  function open ($driver, $connect_string) {
    runkit_class_adopt('sql', "sql_$driver");

  function close () {


$sql = new sql();
$sql->open('mysql', '...');
echo $sql->link . "\n";


$sql->open('oracle', '...');
echo $sql->link . "\n";


Expected result:
Mysql Link
string(9) "sql_mysql"
Oracle Link
string(10) "sql_oracle"

Actual result:
Mysql Link
Error: Class sql has no parent to emancipate from ...
Mysql Link

It seams that runkit just copies class methods, and does not actually extend the class, and becouse of that it cannot emancipate and again adopt it dynamically ...


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 [2013-02-23 18:33 UTC]
-Status: Open +Status: Closed -Assigned To: +Assigned To: pollita
 [2013-02-23 18:33 UTC]
The fix for this bug has been committed.

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will be in the next snapshot. You can grab the snapshot at

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