Composer

curl -sS https://getcomposer.org/installer | php	

php composer.phar install --no-dev --optimize-autoloader

Installing dependencies from lock file
Verifying lock file contents can be installed on current platform.
Package operations: 9 installs, 0 updates, 0 removals
  - Installing enshrined/svg-sanitize (0.22.0): Extracting archive
  - Installing symfony/polyfill-mbstring (v1.37.0): Extracting archive
  - Installing hashids/hashids (5.0.2): Extracting archive
  - Installing jblond/php-diff (2.5.0): Extracting archive
  - Installing psr/simple-cache (3.0.0): Extracting archive
  - Installing phiki/phiki (v2.2.0): Extracting archive
  - Installing phpmailer/phpmailer (v7.1.1): Extracting archive
  - Installing phpthumb/phpthumb (2.3.3): Extracting archive
  - Installing simplepie/simplepie (1.9.0): Extracting archive
Generating optimized autoload files	

composer update

Loading composer repositories with package information
Updating dependencies
Lock file operations: 0 installs, 2 updates, 0 removals
  - Upgrading hashids/hashids (4.1.0 => 5.0.2)
  - Upgrading phpmailer/phpmailer (v6.12.0 => v7.1.1)
Writing lock file
Installing dependencies from lock file (including require-dev)
Package operations: 0 installs, 2 updates, 0 removals
  - Downloading hashids/hashids (5.0.2)
  - Downloading phpmailer/phpmailer (v7.1.1)
  - Upgrading hashids/hashids (4.1.0 => 5.0.2): Extracting archive
  - Upgrading phpmailer/phpmailer (v6.12.0 => v7.1.1): Extracting archive
Generating optimized autoload files
No security vulnerability advisories found.	

• https://getcomposer.org/doc/ar[...]g-merge-conflicts.md^[link1]