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Composer intro
Composer is a tool for dependency management in PHP projects. It allows developers to declare project dependencies in a composer.json file. Composer will then download and install the specified dependencies and their dependencies into a vendor directory. To use Composer, developers first download the Composer phar archive and include it in their system's PATH. They can then install dependencies by running "composer install" or update dependencies to their latest versions with "composer update". Both commands use the composer.lock file to determine what versions to download.
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Composer intro
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- 2. What is composer? Composeris a tool for dependency management in PHP. It allows you to declare the dependent libraries your project needs and it will install them in your project for you. https://getcomposer.org/doc/00-intro.md#introduction
- 3. How does itwork? • Composer is a phar archive that runs as an executable in your system • Download composer.phar to your system and put it in your PATH. • Run “composer” as you would any other CLI tool.
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- 6. Time to useit in a project composer.json { "require": { "acquia/acquia-sdk-php": "*" } }
- 7. composer install • Installsa known state of dependencies into your project. • uses composer.lock to work out what libraries and versions need to be downloaded into the vendor directory • if no composer.lock file exists, this command is the same as running “composer update”.
- 8. composer update • Updatesyour dependencies to their latest versions according to the composer.json file. • Updates composer.lock with the new state information. • Updates actual libraries in vendor directory with new state.
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