⏱ Chrono

The easiest way to measure PHP code execution time.

Introduction

Every time I need to benchmark something, I find myself re-inventing the wheel and do manual time calculations. This hurts my productivity. I wanted a simple little package that is very easy to use that I can go to whenever I need to measure execution time in PHP.

• Easy to remember
• 100% tested
• Framework agnostic
• No dependencies

Installation

composer require angle/chrono

Documentation

This statement is implicitly used above any of the following examples:

use Angle\Chrono;

The shortest way to benchmark your code is to use the benchmark method:

echo Chrono::benchmark(function () {
    sleep(1);
});

Output:

Time: 1 second (1002 ms)

By default, it invokes the 'meter' method which pretty-prints the output. Optionally, you can pass a second parameter to invoke any available formatting methods (ms, seconds, minutes):

echo Chrono::benchmark(function () {
    sleep(1);
}, 'ms');

Output:

1002

Manual usage:

Chrono::start();

// Do something...

echo Chrono::stop(); // 2.42424242 (seconds)

To get formatted output, use the 'meter' method:

Chrono::start();

// Compute stuff

echo Chrono::meter(); // Time: 0.42 seconds (4242 ms)

You can access elapsed time whenever you need, in various formats:

echo Chrono::elapsed(); // 0.42424242
echo Chrono::seconds(); // 0.43
echo Chrono::ms(); // 4243

You can pause and resume the chronometer:

Chrono::start();

sleep(1);

Chrono::pause();

sleep(3); // Will be ignored

Chrono::resume();

sleep(1);

print Chrono::meter(); // Time: 2 seconds (2001 ms)

If you are running many benchmarks, it may be a good idea to add a description to them:

Chrono::describe('Query with joints');
Chrono::start();

// Run the query

print Chrono::meter();

Output:

Query with joints | 1.43 seconds (1424 ms)

Warning: if you prefer to use the shorthand benchmark method, make sure to call the describe method within your benchmark:

Chrono::benchmark(function () {
    Chrono::describe('Task');

    // Do your thing
});

For a more detailed overview, please refer to the test suite.

Credits

This implementation is inspired by David Walsh's timer class.

Contributing

Improvements are welcome! Feel free to submit pull requests.

Licence

MIT

Copyright © 2019 Angle Software