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Package pop-debug
Short Description Pop Debug Component for Pop PHP Framework
License BSD-3-Clause
Homepage http://www.popphp.org/
Informations about the package pop-debug
pop-debug
- Overview
- Install
- Quickstart
- Handlers
- Exception
- Memory
- Message
- Query
- Request
- Time
- Storage
- File
- Database
- Formats
- Retrieving
Overview
pop-debug
is a debugging component that can be used to hooked into an application to track
certain aspects of the application's lifecycle. It can help provide insight to an application's
performance or any issues that may arise within an application.
pop-debug
is a component of the Pop PHP Framework.
Install
Install pop-debug
using Composer.
composer require popphp/pop-debug
Or, require it in your composer.json file
"require": {
"popphp/pop-debug" : "^2.0.0"
}
Top
Quickstart
The basic concept of the debugger is that it works with a handler object or multiple handler objects and one storage object. The handlers are wired to listen to and track various aspects of the application and push their results to the storage object to be retrieved at a later time.
In this simple example, we can set up a generic message handler to store its triggered messages in a file.
The above code will save the following output to the log
folder in a plain text file:
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Handlers
There are a total of 6 available handlers. More handlers can be added, provided they implement the
Pop\Debug\Handler\HandlerInterface
interface.
Exception
The exception handler captures and tracks any exceptions thrown by an application.
The above code will save the following output to the log
folder in a plain text file:
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Memory
The memory handler captures memory usages and peak memory usage. At any point in the application,
you can call the updateMemoryUsage()
and updatePeakMemoryUsage()
methods to take a snapshot
of memory usage in the app at that time.
The above code will save the following output to the log
folder in a plain text file:
Top
Message
The message handler provides simple and generic messaging to record debug events from within the application:
The above code will save the following output to the log
folder in a plain text file:
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Query
The query handler is a special handler that ties into the pop-db
component and the profiler
available with that component. It allows you to capture any database queries and any information
associated with them.
You can set up the query handler like this:
The above code will save the following output to the log
folder in a plain text file:
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Request
The request handler works with a Pop\Http\Server\Request
object from the pop-http
component and tracks
all of the inbound request data. The following example would be a block of code that would run in a script
that receives an inbound HTTP request:
The above code will save the following output to the log
folder in a plain text file:
Top
Time
The time handler provides a simple way to track how long a application request takes, which is useful for performance metrics.
The above code will save the following output to the log
folder in a plain text file:
Top
Storage
There are a few different storage options are available to store the output of the debugger.
File
Store the debugger output into a file in a folder location:
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Database
Store the debugger output into a table in a database. The default table name is pop_debug
but that
can be changed with the database storage object.
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Formats
Three different formats are available for the storing of the debugger output:
- Text (Default)
- JSON
- Serialized PHP
You can set it via the constructor:
Also, the format can be set via the setFormat()
method:
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Retrieving
You can retrieve the stored debug content from the debugger. Calling the save()
method returns the
request ID generated from that method call.
The auto-generated request ID will look like:
From there, you can call getById
to retrieve stored debug content:
The method getByType
is also available to get groups of debug content by type:
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All versions of pop-debug with dependencies
popphp/pop-session Version ^4.0.0
popphp/pop-db Version ^6.5.0
popphp/pop-http Version ^5.0.2