Composer a dependency management tool for PHP

Composer is a dependency management tool for PHP. It allows you to declare the code base on which the project depends, and it installs them for you in your project.

composer is not a package manager. Yes, it involves "packages" and "libraries", but it is managed on a per-project basis, in a directory of your project (e.g.  vendor ) for installation. By default it will not install anything globally. Therefore, this is only a dependency management.

Composer will solve this problem for you:

A) You have a project that relies on a number of libraries.

b) Some of these libraries depend on other libraries.

c) You declare what you depend on.

d) Composer will find out which version of the package needs to be installed and install them (download them to your project).

php -r  "copy (' Https://getcomposer.org/installer ',  ') Composer-setup.php '); " php -r  "if  (Hash_file (' SHA384 ',  ' composer-setup.php ')  ===  ' 544e09ee996cdf60ece3804abc52599c22b1f40f4323403c44d44fdfdd586475ca9813a858088ffbc1f233e9b180f061 ')  {  echo  ' installer verified '; } else { echo  ' installer corrupt ';  unlink (' composer-setup.php '); } echo php_eol; " php composer-setup.phpphp -r  "unlink (' composer-setup.php ');" 

One more Composer.phar after the installation is complete

And then execute

./composer.phar Update

After the update, there will be one more vendor folder

Composer a dependency management tool for PHP