Deprecation Collector

Captures PHP deprecation notices with message, source location, category, and stack trace.

What It Captures

Field	Description
time	Timestamp of the deprecation
message	Deprecation message
file	File where the deprecation was triggered
line	Line number
category	Deprecation category
trace	Stack trace

Data Schema

[
    {
        "time": 1711878000.123,
        "message": "Method getData() is deprecated, use getResult() instead",
        "file": "/app/src/Legacy/Service.php",
        "line": 55,
        "category": "user",
        "trace": [...]
    }
]

Summary (shown in debug entry list):

{
    "deprecation": {
        "total": 2
    }
}

Contract

The collector registers a custom PHP error handler that intercepts E_DEPRECATED and E_USER_DEPRECATED notices. No explicit collect() method is needed — deprecations are captured automatically.

INFO

DeprecationCollectorAppDevPanel\Kernel\Collector\DeprecationCollectorCollects Deprecation data during application lifecycle.final Kernel · class · implements SummaryCollectorInterface implements SummaryCollectorInterfaceAppDevPanel\Kernel\Collector\SummaryCollectorInterfaceSummary data collector responsibility is to collect summary data for a collector. Summary is used to display a list of previous requests and select one to display full info. Its data set is specific to the list and is reduced compared to full data collected in {@see CollectorInterface}.Kernel · interface · extends CollectorInterface and depends on TimelineCollectorAppDevPanel\Kernel\Collector\TimelineCollectorCollects Timeline data during application lifecycle.final Kernel · class · implements SummaryCollectorInterface.

How It Works

On startup(), the collector registers a PHP error handler via set_error_handler(). All deprecation warnings (E_DEPRECATED, E_USER_DEPRECATED) are captured with full stack traces. The original error handler is restored on shutdown().

Debug Panel

• Deprecation list — all deprecation notices with message and source location
• Stack traces — expandable trace for each deprecation
• File links — clickable source paths for IDE integration