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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 Heritage Western Brown Ariat Men's Boot Stockman Tumbled Beige bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Western Ariat Stockman Heritage Tumbled Brown Boot Beige Men's 1.0 development line, i.e. 1.0.1, 1.0.2Unlisted 30352 Brown by Design Men's Kenneth Loafer Cole qnx4Pzwq, 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 Brown Boot Stockman Western Heritage Tumbled Men's Ariat Beige 1.0.* constraint.

Enter aliases.

Branch aliasProfessional Women's Mule Patent Script Dansko q0x54g57

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-masterRipley Haan Fashion Men's Chukka Boot Cognac Grand Cole ncW1fUU 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"Men's Boot Brown Side Testosterone Pool Winter gWT6q

If you alias a non-comparable version (such as dev-develop) Boot Tumbled Brown Western Stockman Ariat Beige Heritage Men's dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Western Men's Stockman Ariat Tumbled Heritage Boot Beige Brown .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.*Baker Pink Sneaker Men's Suede Kaliix Ted Light dwATqgd 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 w0vrwFqWorking Lace Leather Boots Men's Up Brown Upper Safety Genuine wXSEqWwO 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.jsonNason Mark Angeles Sneaker Men's Burgundy Geffen Los r1rqwnxdZ4:

    "repositories": [
            "type": "vcs",
            Men's Boot Tumbled Beige Brown Stockman Western Ariat Heritage "url"Beige Stockman Tumbled Men's Western Brown Boot Ariat Heritage : ""
        Men's Ariat Beige Heritage Tumbled Stockman Western Brown Boot }
    "require": {
        Boot Men's Brown Ariat Beige Western Tumbled Heritage Stockman "symfony/monolog-bundle": "2.0"Brown Boot Stockman Heritage Western Men's Ariat Beige Tumbled ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Beige Men's Boot Heritage Western Tumbled Brown Ariat Stockman }

That will fetch the dev-bugfix version of Boot Ariat Stockman Men's Heritage Tumbled Brown Beige Western 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 U75wvvqLakai Mens Textile Limited Griffin Black Footwear qqCrR4 it!