I went here,but the web debugger only contains the windows version
zenddebugger.dll, where to get the source tar of zend debugger or better the zenddebugger.so for linux?
You can get the PHP 5.3 version of the Zend Debugger from the Zend Studio download page.
It's the Studio Web Debugger, which has versions for 4.3, 4.4, 5.0, 5.1, 5.2, 5.3
You have to register for a Zend account, but you don't need to buy Zend Studio to get it.