Exception Collector

Captures uncaught exceptions with full stack traces and exception chains (previous exceptions).

What It Captures

Field	Description
class	Exception class name
message	Exception message
file	File where the exception was thrown
line	Line number
code	Exception code
trace	Stack trace array
traceAsString	Stack trace as formatted string

Data Schema

Exceptions are serialized as an array (chain from outermost to innermost):

[
    {
        "class": "RuntimeException",
        "message": "Something went wrong",
        "file": "/app/src/Service.php",
        "line": 42,
        "code": 0,
        "trace": [...],
        "traceAsString": "#0 /app/src/Controller.php(15): ..."
    },
    {
        "class": "InvalidArgumentException",
        "message": "Original cause",
        "file": "/app/src/Validator.php",
        "line": 88,
        "code": 0,
        "trace": [...],
        "traceAsString": "..."
    }
]

Summary (shown in debug entry list):

{
    "exception": {
        "class": "RuntimeException",
        "message": "Something went wrong",
        "file": "/app/src/Service.php",
        "line": 42,
        "code": 0
    }
}

Contract

use AppDevPanel\Kernel\Collector\ExceptionCollector;

$collector->collect(throwable: $exception);

INFO

ExceptionCollectorAppDevPanel\Kernel\Collector\ExceptionCollectorCollects Exception 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

Framework adapters hook into the error handling pipeline to capture uncaught exceptions. The collector traverses the exception chain via getPrevious() and serializes each exception in the chain.

Debug Panel

• Exception header — class name, message, and throw location
• Chained exceptions — previous exceptions shown in a collapsible chain
• Syntax-highlighted source code — shows the file around the throw line
• Full stack trace — expandable with file links for IDE integration