Download the PHP package popphp/pop-log without Composer

pop-log

• Overview
• Install
• Quickstart
• Writers
  • File
  • Mail
  • Database
  • HTTP
• Context
• Limits

Overview

pop-log is a logging component that provides a way of logging events following the standard BSD syslog protocol outlined in RFC-3164. Support is built-in for writing log messages to a file or database table or deploying them via email or HTTP. The eight available log message severity values are:

• EMERG (0)
• ALERT (1)
• CRIT (2)
• ERR (3)
• WARN (4)
• NOTICE (5)
• INFO (6)
• DEBUG (7)

and are available via their respective methods:

• $log->emergency($message);
• $log->alert($message);
• $log->critical($message);
• $log->error($message);
• $log->warning($message);
• $log->notice($message);
• $log->info($message);
• $log->debug($message);

pop-log is a component of the Pop PHP Framework.

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Install

Install pop-log using Composer.

composer require popphp/pop-log

Or, require it in your composer.json file

"require": {
    "popphp/pop-log" : "^4.0.0"
}

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Quickstart

This is a basic example using the file writer:

Then, your 'app.log' file will contain:

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Writers

There are four available log writers, but others can be created if they implement the Pop\Log\Writer\WriterInterface.

File

The file log writer simply stores the log output to a log file on disk. The log file format is derived from the log filename. Supported log file types include:

• Plain text (.log or .txt)
• CSV (.csv)
• TSV (.tsv)
• XML (.xml)
• JSON (.json)

The above code creates a CSV file with the log entry:

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Mail

The mail log writer sends the log entries via email using the popphp/pop-mail component. The constructor requires a Pop\Mail\Mailer object and at least one email as the second argument. An optional third argument allows you to pass in additional email headers, like a subject and CC addresses.

Then the emails listed above will receive a series of emails like this:

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Database

Writing a log to a table in a database requires the popphp/pop-db component. The database writer constructor takes an instance of Pop\Db\Adapter\AbstractAdapter and also an optional $table argument (the default table name is pop_log).

In this case, the logs are written to a database table that has the columns id, timestamp, level, name and message. So, after the example above, your database table would look like this:

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HTTP

Using the HTTP writer requires the pop-http component. It creates a request and sends it to the HTTP logging resource. (Refer to the pop-http documentation for more information on how to use the HTTP client.)

The log writer will send HTTP requests with the log data to the HTTP service with the following HTTP data fields:

• timestamp
• level
• name
• message
• context

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Context

For additional contextual information, the $context array can be passed to the methods called to trigger the log entry. It can contain:

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Limits

Log level limits can be set for the log writer objects to enforce the severity of which log messages actually get logged:

The app_prod.log file will contain:

And the app_dev.log file will contain: