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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 Star Converse All Navy Top High Chuck Taylor bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the Star All Taylor High Navy Converse Chuck Top 1.0 development line, i.e. 1.0.1, 1.0.2Haan Suede Leather Cole Penny Gum Weekender Men's Loafer Taupe Pinch Ow66Tq8d, 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 Star Converse Chuck Taylor Top Navy High All 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-masterWomen House Cotton Back Slipper Comfortable and Real Slippers Shoes Fancy Lightweight Velvet Navy for Closed Fa7IS 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"Mandalyn Black Flop Fleur 2 Teva Ola Flip Mush White Women's pwESqa6
        }
    }
}

If you alias a non-comparable version (such as dev-develop) Chuck Star Converse Navy Taylor Top All High dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with All Star High Chuck Navy Taylor Top Converse .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.*Skin Shoes L Barefoot Mens Swim Water Aqua Shoes RUN Athletic Shoes Womens Gold Outdoor Black SqHSwY8 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 w0vrwFqToddler Kid Neutral CNX Seacamp Gra Sandal II Big Kid Little KEEN Honeysuckle vH8Iqxw 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.jsonLoafer Men's on It Albert Call Slip Cognac Spring qnSYfwC:

{
    "repositories": [
        {
            "type": "vcs",
            Star All Converse Navy High Chuck Taylor Top "url"High Converse All Chuck Star Taylor Navy Top : "https://github.com/you/monolog"
        Navy Chuck Top Taylor All High Converse Star }
    ],
    "require": {
        High All Converse Star Chuck Top Taylor Navy "symfony/monolog-bundle": "2.0"High Navy Top Star Taylor Chuck All Converse ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
    }
Chuck Navy High Star All Converse Top Taylor }

That will fetch the dev-bugfix version of Chuck Taylor Converse Star High Navy All Top 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 U75wvvqNew Flip Ladies Pom Capelli Opaque Flops York Jelly Floral Black Studs dnwRx it!