---
title: "Zend Certified Engineer - PHP 5.3 · Karl Valentin"
url: https://vutuv.de/karl_valentin/qualifications/01a0cf2e-c63d-77ca-82d7-6b8c91633952
type: qualification
schema_version: 3
generated_at: 2026-09-24T07:21:22Z
noindex: true
noai: true
---

# Zend Certified Engineer - PHP 5.3 · Karl Valentin

- Zend Certified Engineer - PHP 5.3: Certificate · awarded 2011-08 · ID: ZEND017729