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content/reference/php-versions.md

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+---
+title: "Supported PHP Versions"
+description: "PHP versions available on Arcline shared hosting and VPS plans."
+section: reference
+order: 2
+---
+
+# Supported PHP Versions
+
+Arcline supports multiple PHP versions to accommodate different application requirements.
+
+---
+
+## Shared hosting
+
+On shared hosting plans, you can select your PHP version in cPanel under **Software → Select PHP Version**.
+
+| Version | Status | End of Life | Notes |
+|---------|--------|-------------|-------|
+| 8.3 | Active | 2026-12-31 | Recommended for new sites |
+| 8.2 | Active | 2025-12-31 | Good stability |
+| 8.1 | Security only | 2024-11-30 | Upgrade recommended |
+| 8.0 | End of life | 2023-11-26 | Not recommended |
+
+---
+
+## VPS plans
+
+On VPS plans, you can install any PHP version from the system package manager or use a third-party repository like [Ondřej Surý's PPA](https://deb.sury.org/):
+
+```bash
+sudo apt install php8.3 php8.3-fpm php8.3-mysql
+```
+
+---
+
+## Switching PHP versions
+
+In cPanel, go to **Select PHP Version**, choose the version you want, and click **Set as current**. Most WordPress sites will work on any PHP 8.x version without issues.
+
+After switching, check your site thoroughly:
+- If you see blank pages or errors, your application may not support the PHP version you selected
+- WordPress 5.6+ supports PHP 8.x. WordPress 6.0+ requires PHP 7.4+
+- Older plugins may not be compatible with PHP 8.x — check with the plugin developer
+
+---
+
+## PHP extensions
+
+The following extensions are available on shared hosting:
+
+```
+bcmath, calendar, Core, ctype, curl, date, dom, exif, fileinfo,
+filter, ftp, gd, gettext, gmp, hash, iconv, imagick, intl, json,
+ldap, libxml, mbstring, mysqli, mysqlnd, openssl, pcntl, pcre,
+PDO, pdo_mysql, pdo_sqlite, Phar, posix, random, readline, redis,
+Reflection, session, shmop, SimpleXML, sockets, sodium, SPL, sqlite3,
+standard, sysvsem, sysvshm, tokenizer, xml, xmlreader, xmlwriter,
+xsl, Zend OPcache, zip, zlib
+```
+
+If you need an extension that isn't listed, contact Arcline support.
+