Analyzer php-gco-ref

# Name

php-gco-ref - PHP GC Object Reference Flame Graph

This analyzer traces object reference relationships in PHP’s garbage collection system. It captures the reference chains and memory ownership patterns of PHP objects, tracking how objects reference each other in memory. The analyzer generates flame graphs that visualize object reference hierarchies and memory consumption by object type, helping identify circular references, memory retention issues, and optimize object lifecycle management in PHP applications.

# Resource Category

Memory.

# Application Type & Technical Stack

• PHP

# Command Line Syntax

The analyzer can be invoked directly on the command-line via the orxray utility from the openresty-xray-cli software package.

Alternatively, the analyzer can also be invoked manually or automatically on the web console UI of OpenResty XRay (like on the Advanced web page).

# PID is the target process PID.
orxray analyzer run php-gco-ref -p PID

# trace a shell command directly
orxray analyzer run php-gco-ref -c SHELL_CMD

# Tracing Multiple Processes

Not supported.

# Output Formats

• Flame Graphs

# Author

The OpenResty Inc. Team.

# Copyright

Copyright (C) by OpenResty Inc. All rights reserved.