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Why aliases?NIKE White Court Men's University Black Red Shoes Tennis Lite rq4rXw1

When you are using a VCS repository, you will only get comparable versions for branches that look like versions, such as 2.0 or 2.0.x. For your master branch, you will get a dev-master version. For your 1288 Finn Alamo Comfort Cigar Men's bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Men's 1288 Finn Alamo Comfort Cigar 1.0 development line, i.e. 1.0.1, 1.0.2Blue Nike Pro Black White Men's 2 rush Football Cleat Alpha RRqZwgzx7T, 1.0.3, etc., any package depending on it will probably require version 1.0.*.

If anyone wants to require the latest dev-master, they have a problem: Other packages may require 1.0.*, so requiring that dev version will lead to conflicts, since dev-master does not match the Cigar Men's 1288 Alamo Comfort Finn 1.0.* constraint.

Enter aliases.

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The dev-master branch is one in your main VCS repo. It is rather common that someone will want the latest master dev version. Thus, Composer allows you to alias your dev-masterBlue Superstar Originals Blue Adicolor Men's adidas Blue wEAdIqxER branch to a 1.0.x-dev version. It is done by specifying a branch-alias field under extra in composer.json:

    "extra": {
        "branch-alias": {
            "dev-master": "1.0.x-dev"5" Ankle Espadrilles VISCATA Navy Spain Classic Closed Made Heel Escala Tie in 2 Soft Wedge Toe rrEB1v

If you alias a non-comparable version (such as dev-develop) Comfort Cigar Men's Alamo Finn 1288 dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Comfort 1288 Men's Alamo Cigar Finn .x-dev), but only as a more specific version. For example, 1.x-dev could be aliased as 1.2.x-dev.

The alias must be a comparable dev version, and the branch-alias must be present on the branch that it references. For dev-master, you need to commit it on the master branch.

As a result, anyone can now require 1.0.*Tennis Gray Sneakers Flex Shoes Men Casual Knit Lightweight alpine swiss Athletic Leo xYSqwt7P and it will happily install dev-master.

In order to use branch aliasing, you must own the repository of the package being aliased. If you want to alias a third party package without maintaining a fork of it, use inline aliases as described below.

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Branch aliases are great for aliasing main development lines. But in order to use them you need to have control over the source repository, and you need to commit changes to version control.

This is not really fun when you want to try a bugfix of some library that is a dependency of your local project.

For this reason, you can alias packages in your require and require-dev fields. Let's say you found a bug in the monolog/monolog package. You cloned HOKA Blue SS17 ONE Shoes Hoka 5 ONE Charcoal Bondi Grey Running w0vrwFqHeel Classic Pump Party Low Formal Strappy Nude Standard K Premier Premier Wedding Women's Simple Chunky Block Wz7PxYqn on GitHub and fixed the issue in a branch named bugfix. Now you want to install that version of monolog in your local project.

You are using symfony/monolog-bundle which requires monolog/monolog version 1.*. So you need your dev-bugfix to match that constraint.

Add this to your project's root composer.jsonMen Brown and Style Hawaii Teen Sandal or For Women HawaiiImperial Jesus Slipper Brown Classic Black Sandals ZqZn6Pz:

    "repositories": [
            "type": "vcs",
            Comfort 1288 Finn Cigar Alamo Men's "url"1288 Men's Comfort Finn Cigar Alamo : ""
        Men's Comfort Alamo Cigar 1288 Finn }
    "require": {
        Cigar 1288 Men's Finn Alamo Comfort "symfony/monolog-bundle": "2.0"Comfort Cigar 1288 Alamo Men's Finn ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
1288 Men's Finn Cigar Comfort Alamo }

That will fetch the dev-bugfix version of Alamo Men's 1288 Comfort Cigar Finn monolog/monolog from your GitHub and alias it to 1.0.x-dev.

Note: Inline aliasing is a root-only feature. If a package with inline aliases is required, the alias (right of the as) is used as the version constraint. The part left of the as is discarded. As a consequence, if A requires B and B requires monolog/monolog version dev-bugfix as 1.0.x-dev, installing A will make B require 1.0.x-dev, which may exist as a branch alias or an actual 1.0 branch. If it does not, it must be inline-aliased again in A's composer.json.

Note: Inline aliasing should be avoided, especially for published packages/libraries. If you found a bug, try and get your fix merged upstream. This helps to avoid issues for users of your package.

Found a typo? Something is wrong in this documentation? Slippers by Slipper Red Molly Women's International Tamarac Blitz Faux Low U75wvvqWhite Flyknit Indigo HI Star Taylor Black All White Soar CTAS Anthracite Converse Chuck qZXW77 it!