WordPress: PHP Dependencies

Tabled below is a list of PHP dependencies for WordPress and some of its more popular plugins. Interestingly, the plugin PHP dependencies are not well documented anywhere.

WordPress & PluginsPHP DependenciesReferences
WordPress 5.5.1 and higherphp, curl, dom, exif, fileinfo, json, mbstring, mysqli, pecl-libsodium, openssl, pecl-imagick, xml, zip, filter, gd, iconv, pecl-mcrypt, simplexml, xmlreader, zlib, ftp, pecl-ssh2, sockets1. WordPress Hosting Handbook Server Environment.
2. Use php -m in the WordPress jail to list compiled modules.
Akismet Anti-Spam
Jetpackctype, xmlrpcJetpack support forum thread Blog token is missing
Pen
UpdraftPlus – Backup/Restoresession, xmlwriter1. UpdraftPlus support forum thread Unexpected response
2. xmlwriter is required if Amazon S3 is chosen as remote storage.
Wordfence Security
WordPress Importer
Yoast SEO

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