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Zend Platform i5/OS User Guide
Architecture
Zend Platform is a complete environment that provides rich functionality by interacting with
the existing PHP in a simple and generic way. Zend Platform is a non-intrusive extension to
an existing environment with minimal overhead that helps obtain enhanced performance
and reliability.
Zend Platform extends the Zend Engine with the organization's execution environment,
providing the platform on which Web services, business to commerce applications, contentmanagement, Intranet and business-to-business applications are based.
Figure: 2 - Zend Platform and the PHP-enabled Enterprise
Zend Platform consists of two deployed components the Central Server (consists of a Server
+ Node) and the Node component.
Zend’s Central Server is a central management component for governing node
configurations and script performance information. The Central Server can be deployed as a
standalone Zend Platform environment for a single server and for this reason, contains fully
functioning node components. However, the prominent application for Zend Platform is
multiple server/cluster based environments.
Zend Central provides a single point of access and control for multiple nodes.
Nodes are web servers that run with Apache and service a PHP application. The Zend
Platform components are installed on the node to report script, database and system activity
to the Central Server. Each node installation also includes a debugger that is integrated with
Zend Studio extended code management features such as profiling, debugging and
correcting code directly on a node.
In essence, similar components are installed on the Central Server and the Nodes since the
Central Server also performs as a node. However, the Central Server and the Node
Components employ different modules for their overall activity.
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