I would like to know what are the certificates available for programming, like 

Zend for PHP
SUN Certification for java

What are the others? Javascript? C++? Python? etc...
Please give me some suggestion for other available certifications.
Most valuable thing for a developer: being able to show you can convert requirements into working and maintainable software.
Certifications generally are worth very little, except in a few niches that demand them (or at least ask, until they give up and get someone who puts practice before pieces of paper).
What are the most valuable certification available for Programming?