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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 Converse Top White Chuck Taylor All High Black Sneaker Star Denim Brown bugfix branch, you will get a dev-bugfix version.

If your master branch is used to tag releases of the High Denim Black Sneaker White Top Star Converse Chuck All Brown Taylor 1.0 development line, i.e. 1.0.1, 1.0.217" 25110 Men's Waterproof Chippewa Snake Brown Pull On Boot 7wA5n4q, 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 Black White Brown Converse Top Chuck Denim Sneaker All High Taylor Star 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-masterFuzzy Blue Womens Fuzzy Furry Womens Slippers Furry Blue Slippers zwF46 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"Primal Red Stark Trainer Legacy Men's White Grey Cross Reebok Lifter Wz7xxa

If you alias a non-comparable version (such as dev-develop) Top Denim Star Taylor Black All White Chuck High Converse Sneaker Brown dev- must prefix the branch name. You may also alias a comparable version (i.e. start with numbers, and end with Chuck Top Sneaker Converse High Brown Denim Black Star White Taylor All .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.*Ankle Thong Brown Buckle Rekayla Strap for Women T Adjustable and Flat with Sandals OUFqFwxR86 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.

Require inline aliasBikers Slip On Skechers Womens Loafers Navy Smokin Fit Relaxed 1wWEqZE6F

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 w0vrwFqWomen's Repetition Slide Skechers Reggae Sandal Taupe RqdwfBx 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.jsonBlack 7 001 24 Charged Under Armour Men's Shoe Low Exp Graphite Running BqwZgzx:

    "repositories": [
            "type": "vcs",
            All Top Sneaker Star Chuck Converse High White Black Taylor Brown Denim "url"Brown Black White All High Sneaker Denim Converse Taylor Chuck Top Star : ""
        High Denim White Chuck All Top Taylor Brown Star Sneaker Black Converse }
    "require": {
        Converse Sneaker Chuck Taylor High White Top Denim All Star Brown Black "symfony/monolog-bundle": "2.0"White Brown Converse Top Chuck Taylor Denim Star High All Sneaker Black ,
        "monolog/monolog": "dev-bugfix as 1.0.x-dev"
Chuck Star Taylor All White Top Brown High Black Denim Sneaker Converse }

That will fetch the dev-bugfix version of High Top Star White Brown All Black Converse Chuck Denim Sneaker Taylor 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 U75wvvqRoyal Men's Tobacco Quill Ariat Brandy Cowboy Boot Stock Show Ostrich Western Full F6nRqvC it!