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Install Composer dependencies for production

cautionPHPalle

Caution: This command changes the system. Understand what it does before you run it.

Adjust the values, the command updates live
user@server
composer install --no-dev --optimize-autoloader --working-dir=/var/www/vhosts/example.com/httpdocs

Installs exactly the versions pinned in composer.lock and leaves out packages from require-dev. The optimized autoloader generates a class map, which speeds up application startup. A typical step when deploying to a live server.

Note: Run it as the subscription user, not as root, so that vendor/ has the right owner. For a specific PHP version, put the interpreter in front, for example /opt/plesk/php/8.3/bin/php /usr/local/bin/composer.

Also searched as

  • composer install production
  • composer install without dev packages
  • rebuild vendor folder

Related one-liners

All in PHP

Check Composer packages for known vulnerabilities

$composer audit --working-dir=/var/www/vhosts/example.com/httpdocs
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Check all PHP files in a directory for syntax errors

$find /var/www/vhosts/example.com/httpdocs/wp-content/themes -name '*.php' -exec php -l {} \; 2>&1 | grep -v '^No syntax errors'
harmlessPHP

Check PHP OPcache settings

$php -i | grep -E '^opcache\.(enable|enable_cli|memory_consumption|max_accelerated_files|validate_timestamps|revalidate_freq) '
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Check the current value of a PHP setting

$php -i | grep -i memory_limit
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Check whether a PHP extension is loaded

$php -m | grep -i imagick
harmlessPHP

Count PHP-FPM processes per pool

$ps -eo args | grep '[p]hp-fpm: pool' | awk '{print $NF}' | sort | uniq -c | sort -rn
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