title: How to use composer to install dependencies for laravel?
body: <p>I get the following errors while installing laravel using composer.
  Please help me install laravel autoinstalling missing dependencies.</p>
  <blockquote>
  <p>symfony/var-dumper suggests installing ext-intl (To show region name
  in time zone dump) symfony/var-dumper suggests installing
  ext-symfony_debug () symfony/routing suggests installing
  doctrine/annotations (For using the annotation loader) symfony/routing
  suggests installing symfony/config (For using the all-in-one router or
  any loader) symfony/routing suggests installing
  symfony/dependency-injection (For loading routes from a service)
  symfony/routing suggests installing symfony/expression-language (For
  using expression matching) symfony/routing suggests installing
  symfony/yaml (For using the YAML loader) paragonie/random_compat
  suggests installing ext-libsodium (Provides a modern crypto API that
  can be used to generate random bytes.) symfony/event-dispatcher
  suggests installing symfony/dependency-injection ()
  symfony/http-kernel suggests installing symfony/browser-kit ()
  symfony/http-kernel suggests installing symfony/config ()
  symfony/http-kernel suggests installing symfony/dependency-injection
  () symfony/console suggests installing symfony/lock ()
  symfony/polyfill-intl-idn suggests installing ext-intl (For best
  performance) egulias/email-validator suggests installing ext-intl (PHP
  Internationalization Libraries are required to use the SpoofChecking
  validation) swiftmailer/swiftmailer suggests installing ext-intl
  (Needed to support internationalized email addresses)
  swiftmailer/swiftmailer suggests installing true/punycode (Needed to
  support internationalized email addresses, if ext-intl is not
  installed) ramsey/uuid suggests installing ircmaxell/random-lib
  (Provides RandomLib for use with the RandomLibAdapter) ramsey/uuid
  suggests installing ext-libsodium (Provides the PECL libsodium
  extension for use with the SodiumRandomGenerator) ramsey/uuid suggests
  installing ext-uuid (Provides the PECL UUID extension for use with the
  PeclUuidTimeGenerator and PeclUuidRandomGenerator) ramsey/uuid
  suggests installing moontoast/math (Provides support for converting
  UUID to 128-bit integer (in string form).) ramsey/uuid suggests
  installing ramsey/uuid-doctrine (Allows the use of Ramsey\Uuid\Uuid as
  Doctrine field type.) ramsey/uuid suggests installing
  ramsey/uuid-console (A console application for generating UUIDs with
  ramsey/uuid) symfony/translation suggests installing symfony/config ()
  symfony/translation suggests installing symfony/yaml () nesbot/carbon
  suggests installing friendsofphp/php-cs-fixer (Needed for the
  <code>composer phpcs</code> command. Allow to automatically fix code style.)
  nesbot/carbon suggests installing phpstan/phpstan (Needed for the
  <code>composer phpstan</code> command. Allow to detect potential errors.)
  monolog/monolog suggests installing aws/aws-sdk-php (Allow sending log
  messages to AWS services like DynamoDB) monolog/monolog suggests
  installing doctrine/couchdb (Allow sending log messages to a CouchDB
  server) monolog/monolog suggests installing ext-amqp (Allow sending
  log messages to an AMQP server (1.0+ required)) monolog/monolog
  suggests installing ext-mongo (Allow sending log messages to a MongoDB
  server) monolog/monolog suggests installing graylog2/gelf-php (Allow
  sending log messages to a GrayLog2 server) monolog/monolog suggests
  installing mongodb/mongodb (Allow sending log messages to a MongoDB
  server via PHP Driver) monolog/monolog suggests installing
  php-amqplib/php-amqplib (Allow sending log messages to an AMQP server
  using php-amqplib) monolog/monolog suggests installing
  php-console/php-console (Allow sending log messages to Google Chrome)
  monolog/monolog suggests installing rollbar/rollbar (Allow sending log
  messages to Rollbar) monolog/monolog suggests installing
  ruflin/elastica (Allow sending log messages to an Elastic Search
  server) monolog/monolog suggests installing sentry/sentry (Allow
  sending log messages to a Sentry server) league/flysystem suggests
  installing league/flysystem-aws-s3-v2 (Allows you to use S3 storage
  with AWS SDK v2) league/flysystem suggests installing
  league/flysystem-aws-s3-v3 (Allows you to use S3 storage with AWS SDK
  v3) league/flysystem suggests installing league/flysystem-azure
  (Allows you to use Windows Azure Blob storage) league/flysystem
  suggests installing league/flysystem-cached-adapter (Flysystem adapter
  decorator for metadata caching) league/flysystem suggests installing
  league/flysystem-eventable-filesystem (Allows you to use
  EventableFilesystem) league/flysystem suggests installing
  league/flysystem-rackspace (Allows you to use Rackspace Cloud Files)
  league/flysystem suggests installing league/flysystem-sftp (Allows you
  to use SFTP server storage via phpseclib) league/flysystem suggests
  installing league/flysystem-webdav (Allows you to use WebDAV storage)
  league/flysystem suggests installing league/flysystem-ziparchive
  (Allows you to use ZipArchive adapter) league/flysystem suggests
  installing spatie/flysystem-dropbox (Allows you to use Dropbox
  storage) league/flysystem suggests installing
  srmklive/flysystem-dropbox-v2 (Allows you to use Dropbox storage for
  PHP 5 applications) laravel/framework suggests installing
  aws/aws-sdk-php (Required to use the SQS queue driver and SES mail
  driver (~3.0).) laravel/framework suggests installing doctrine/dbal
  (Required to rename columns and drop SQLite columns (~2.5).)
  laravel/framework suggests installing guzzlehttp/guzzle (Required to
  use the Mailgun and Mandrill mail drivers and the ping methods on
  schedules (~6.0).) laravel/framework suggests installing
  league/flysystem-aws-s3-v3 (Required to use the Flysystem S3 driver
  (~1.0).) laravel/framework suggests installing
  league/flysystem-cached-adapter (Required to use Flysystem caching
  (~1.0).) laravel/framework suggests installing
  league/flysystem-rackspace (Required to use the Flysystem Rackspace
  driver (~1.0).) laravel/framework suggests installing nexmo/client
  (Required to use the Nexmo transport (~1.0).) laravel/framework
  suggests installing pda/pheanstalk (Required to use the beanstalk
  queue driver (~3.0).) laravel/framework suggests installing
  predis/predis (Required to use the redis cache and queue drivers
  (~1.0).) laravel/framework suggests installing
  pusher/pusher-php-server (Required to use the Pusher broadcast driver
  (~3.0).) laravel/framework suggests installing symfony/dom-crawler
  (Required to use most of the crawler integration testing tools
  (~3.3).) laravel/framework suggests installing
  symfony/psr-http-message-bridge (Required to psr7 bridging features
  (~1.0).) psy/psysh suggests installing ext-pdo-sqlite (The doc command
  requires SQLite to work.) psy/psysh suggests installing hoa/console (A
  pure PHP readline implementation. You'll want this if your PHP install
  doesn't already support readline or libedit.) filp/whoops suggests
  installing whoops/soap (Formats errors as SOAP responses)
  sebastian/global-state suggests installing ext-uopz (<em>)
  phpunit/phpunit-mock-objects suggests installing ext-soap (</em>)
  phpunit/php-code-coverage suggests installing ext-xdebug (^2.5.5)
  phpunit/phpunit suggests installing phpunit/php-invoker (^1.1)
  phpunit/phpunit suggests installing ext-xdebug (*)</p>
  </blockquote>