README

A PHP client library for the statistics daemon (statsd) intended to send metrics from PHP applications.

Installation

The best way to install statsd-php is to use Composer and add the following to your project's composer.json file:

{
    "require": {
        "domnikl/statsd": "~2.0"
    }
}

Usage

<?php
$connection = new \Domnikl\Statsd\Connection\UdpSocket('localhost', 8125);
$statsd = new \Domnikl\Statsd\Client($connection, "test.namespace");

// the global namespace is prepended to every key (optional)
$statsd->setNamespace("test");

// simple counts
$statsd->increment("foo.bar");
$statsd->decrement("foo.bar");
$statsd->count("foo.bar", 1000);

When establishing the connection to statsd and sending metrics, errors will be suppressed to prevent your application from crashing.

If you run statsd in TCP mode, there is also a \Domnikl\Statsd\Connection\TcpSocket adapter that works like the UdpSocket except that it throws a \Domnikl\Statsd\Connection\TcpSocketException if no connection could be established. Please consider that unlike UDP, TCP is used for reliable networks and therefor exceptions (and errors) will not be suppressed in TCP mode.

Timings

<?php
// timings
$statsd->timing("foo.bar", 320);
$statsd->time("foo.bar.bla", function() {
    // code to be measured goes here ...
});

// more complex timings can be handled with startTiming() and endTiming()
$statsd->startTiming("foo.bar");
// more complex code here ...
$statsd->endTiming("foo.bar");

Memory profiling

<?php
// memory profiling
$statsd->startMemoryProfile('memory.foo');
// some complex code goes here ...
$statsd->endMemoryProfile('memory.foo');

// report peak usage
$statsd->memory('foo.memory_peak_usage');

Gauges

statsd supports gauges, arbitrary values which can be recorded.

This method accepts both absolute (3) and delta (+11) values.

NOTE: Negative values are treated as delta values, not absolute.

<?php
// Absolute value
$statsd->gauge('foobar', 3);

// Pass delta values as a string. 
// Accepts both positive (+11) and negative (-4) delta values.
$statsd->gauge('foobar', '+11'); 

Sets

statsd supports sets, so you can view the uniqueness of a given value.

<?php
$statsd->set('userId', 1234);

disabling sending of metrics

To disable sending any metrics to the statsd server, you can use the Domnikl\Statsd\Connection\Blackhole connection 
class instead of the default socket abstraction. This may be incredibly useful for feature flags. Another options is to use Domnikl\Statsd\Connection\InMemory connection class, that will collect your messages but won't actually send them.

Authors

Original author: Dominik Liebler liebler.dominik@gmail.com Several other contributors - Thank you!

License

(The MIT License)

Copyright (c) 2016 Dominik Liebler

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.