PHP environment
Installing PHP extensions
Global PHP extensions per version — Web stack → PHP extensions.
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Select PHP version
Web stack → PHP extensions tab. Select version (e.g. 8.3). PHP-FPM package for that version must be installed.
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CMS extension bundle
«Install CMS extensions» button installs a typical set (mysql, curl, gd, intl, zip…) for the selected version at once.
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Individual extensions
Search the table and click Install or Uninstall. Operation runs in background — do not close the page while running.
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Verification
After install verify PHP-FPM service is active (Web stack → Install). Extensions are global — apply to all projects on that version.
php8.3 -m | grep -i mysql systemctl status php8.3-fpm