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symfony70/deprecation-contracts
===============================

PHP 7.0 support for: A generic function and convention to trigger deprecation notices

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Since Apr 22Pushed 3y agoCompare

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Symfony Deprecation Contracts
=============================

[](#symfony-deprecation-contracts)

A generic function and convention to trigger deprecation notices.

This package provides a single global function named `trigger_deprecation()` that triggers silenced deprecation notices.

By using a custom PHP error handler such as the one provided by the Symfony ErrorHandler component, the triggered deprecations can be caught and logged for later discovery, both on dev and prod environments.

The function requires at least 3 arguments:

- the name of the Composer package that is triggering the deprecation
- the version of the package that introduced the deprecation
- the message of the deprecation
- more arguments can be provided: they will be inserted in the message using `printf()` formatting

Example:

```
trigger_deprecation('symfony/blockchain', '8.9', 'Using "%s" is deprecated, use "%s" instead.', 'bitcoin', 'fabcoin');
```

This will generate the following message: `Since symfony/blockchain 8.9: Using "bitcoin" is deprecated, use "fabcoin" instead.`

While not necessarily recommended, the deprecation notices can be completely ignored by declaring an empty `function trigger_deprecation() {}` in your application.

###  Health Score

16

—

LowBetter than 6% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity6

Limited adoption so far

Community12

Small or concentrated contributor base

Maturity25

Early-stage or recently created project

 Bus Factor1

Top contributor holds 65.7% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

### Community

Maintainers

![](https://www.gravatar.com/avatar/12bb1d3b51340daa0f19c946f2ba7d3e4b277854fc722409809d0e43845fe0de?d=identicon)[garygitton](/maintainers/garygitton)

---

Top Contributors

[![nicolas-grekas](https://avatars.githubusercontent.com/u/243674?v=4)](https://github.com/nicolas-grekas "nicolas-grekas (23 commits)")[![fabpot](https://avatars.githubusercontent.com/u/47313?v=4)](https://github.com/fabpot "fabpot (6 commits)")[![derrabus](https://avatars.githubusercontent.com/u/1506493?v=4)](https://github.com/derrabus "derrabus (2 commits)")[![xepozz](https://avatars.githubusercontent.com/u/6815714?v=4)](https://github.com/xepozz "xepozz (1 commits)")[![garygitton](https://avatars.githubusercontent.com/u/3704874?v=4)](https://github.com/garygitton "garygitton (1 commits)")[![chalasr](https://avatars.githubusercontent.com/u/7502063?v=4)](https://github.com/chalasr "chalasr (1 commits)")[![lyrixx](https://avatars.githubusercontent.com/u/408368?v=4)](https://github.com/lyrixx "lyrixx (1 commits)")

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