Reference Guide

Zend Code Tracing
Zend Server Reference Manual
Zend Code Tracing enables real-time execution flow recording in Production Environments.
Code Tracing enables deep analysis of PHP execution and flow using drill-down requests related to an
Event (Monitoring Rule), or triggered manually.
The component focuses on collecting key data points such as:
Application functions and main PHP function calls including function arguments
High-resolution timing and memory usage of execution elements.
Key PHP engine services such as Web server interface calls
The information collection process focuses on keeping relevant information based on either user-defined
parameters that trigger events or a specific URL that is manually entered to be traced. For monitor
events, each time an event is triggered the information is kept for further use. Otherwise, the information
will be discarded to preserve disk-space. Events can also be triggered to generate a trace file for a
specific URL (see Triggering a URL Trace).
Trace information is a capture of the Function Tree and enables deep tracing of the functions of the
server parameters, including:
Returns
Memory
Time (ms)
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