So today I tried to install bootstrap with the composer via composer.json. I added twbs/bootstrap in my require list at the composer.json file in my project map and runned the command
$ composer update It was succesfully downloaded and with a few adjustments to my code and command line I can use it now in my base:html.twig file.
Unfortunately, the composer updated also my version of symfony from 2.7 to 2.8. Is there any option that I update/download bootstrap without updating my version number of Symfony, doctrine etc with the composer? My code of composer.json:
{ "name": "symfony/framework-standard-edition", "license": "MIT", "type": "project", "description": "The \"Symfony Standard Edition\" distribution", "autoload": { "psr-4": { "": "src/", "SymfonyStandard\\": "app/" } }, "require": { "php": ">=5.3.3", "symfony/symfony": "~2.7@beta", "doctrine/orm": "~2.2,>=2.2.3,<2.5", "doctrine/dbal": "<2.5", "doctrine/doctrine-bundle": "~1.4", "symfony/assetic-bundle": "~2.3", "symfony/swiftmailer-bundle": "~2.3", "symfony/monolog-bundle": "~2.4", "sensio/distribution-bundle": "~3.0,>=3.0.12", "sensio/framework-extra-bundle": "~3.0,>=3.0.2", "incenteev/composer-parameter-handler": "~2.0", "friendsofsymfony/user-bundle": "~1.3", "twbs/bootstrap": "3.2.*", "components/jquery": "1.9.*" }, "require-dev": { "sensio/generator-bundle": "~2.3" }, "scripts": { "post-root-package-install": [ "SymfonyStandard\\Composer::hookRootPackageInstall" ], "post-install-cmd": [ "Incenteev\\ParameterHandler\\ScriptHandler::buildParameters", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::removeSymfonyStandardFiles", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::prepareDeploymentTarget" ], "post-update-cmd": [ "Incenteev\\ParameterHandler\\ScriptHandler::buildParameters", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::removeSymfonyStandardFiles", "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::prepareDeploymentTarget" ] }, "config": { "bin-dir": "bin" }, "extra": { "symfony-app-dir": "app", "symfony-web-dir": "web", "symfony-assets-install": "relative", "incenteev-parameters": { "file": "app/config/parameters.yml" }, "branch-alias": { "dev-master": "2.7-dev" } } } 
$ composer updatecommand