Step 1

Download and Install the Composer.

Copy the following code and run in your terminal.


php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
php -r "if (hash_file('sha384', 'composer-setup.php') === 'e0012edf3e80b6978849f5eff0d4b4e4c79ff1609dd1e613307e16318854d24ae64f26d17af3ef0bf7cfb710ca74755a') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php
php -r "unlink('composer-setup.php');"

To get the latest version from the official website.

This installer script will simply check some php.ini settings, warn you if they are set incorrectly, and then download the latest composer.phar in the current directory.

The 4 lines above will, in order:

1. Download the installer to the current directory

2. Verify the installer SHA-384

3. Run the installer

4. Remove the installer

Step 2

Place the Composer PHAR globally accessible directory.

You can place the Composer PHAR anywhere you wish.

If you put it in a directory that is part of your PATH, you can access it globally.

On Unix systems (Linux/Mac) you can even make it executable and invoke it without directly using the php interpreter.

Run this command to move composer.phar to a directory that is in your path:


mv composer.phar /usr/local/bin/composer

Step 3

Make sure it is globally accessible.

Run this command and check:


composer

It will show you details about the composer.

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