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Diffstat (limited to 'vendor/symfony/deprecation-contracts/README.md')
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diff --git a/vendor/symfony/deprecation-contracts/README.md b/vendor/symfony/deprecation-contracts/README.md new file mode 100644 index 000000000..4957933a6 --- /dev/null +++ b/vendor/symfony/deprecation-contracts/README.md @@ -0,0 +1,26 @@ +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: +```php +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. |