How to install composer?

How to install composer?

Composer installation method

Wondows platform

On the Wondows platform, we only need to download Composer-Setup.exe and install it step by step.

It should be noted that you need to enable openssl configuration. We open php.ini in the php directory and remove the semicolon in front of extension=php_openssl.dll.

After the installation is successful, we can enter the composer --version command through the command window (cmd) to check whether the installation is successful:

Next we can change Packagist to the domestic mirror:

composer config -g repo.packagist composer https://packagist.phpcomposer.com

Related recommendations: [composer tutorial]

Linux platform

The Linux platform can be installed using the following command:

# php -r "copy('https://install.phpcomposer.com/installer', 'composer-setup.php');"
# php composer-setup.php
All settings correct for using Composer
Downloading...
Composer (version 1.6.5) successfully installed to: /root/composer.phar
Use it: php composer.phar

Move composer.phar so that composer can make global calls:

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

Switch to domestic mirror:

# composer config -g repo.packagist composer https://packagist.phpcomposer.com

Update composer:

# composer selfupdate

Mac OS system

Mac OS system can use the following command to install:

$ curl -sS https://getcomposer.org/installer | php
$ sudo mv composer.phar /usr/local/bin/composer
$ composer --version
Composer version 1.7.2 2018-08-16 16:57:12

Switch to domestic mirror:

$ composer config -g repo.packagist composer https://packagist.phpcomposer.com

Update composer:

$ composer selfupdate

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