How to install Composer
1. Download and install the Composer
  1. php -r "copy('', 'composer-setup.php');"
  2. php -r "if (hash_file('sha384', 'composer-setup.php') === 'dac665fdc30fdd8ec78b38b9800061b4150413ff2e3b6f88543c636f7cd84f6db9189d43a81e5503cda447da73c7e5b6') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
  3. php composer-setup.php
  4. php -r "unlink('composer-setup.php');"
2. Move the Composer PHAR file to a directory that is part of your system's PATH
  1. sudo mv composer.phar /usr/local/bin/composer
3. Verify the Composer installation
  1. composer -V
Composer version 2.7.2 2024-03-11 17:12:18
PHP version 8.3.4 (/usr/bin/php8.3)
Run the "diagnose" command to get more detailed diagnostics output.