PHP Extensions : OpenSRS Customer Support

OpenSRS Cloud Hosting is currently in closed beta and is available only to participating resellers. To sign up for Cloud Hosting, visit opensrs.com/hosting

To streamline website deployment and enhance compatibility, all new websites include a curated set of commonly used PHP extensions. These are automatically installed and enabled on provisioning, providing optimal out-of-the-box functionality and reducing plugin-related support issues.

Extension List & Compatibility

Pre-Installed PHP Extensions

The following extensions are included by default on all new website templates, based on PHP extensions from WordPress:

Module	Description	Library
json	Used for communications with other servers and processing data in JSON format.	bundled in >=8.0.0
mysqli	Connects to MySQL for database interactions.	libmysql
curl	Performs remote request operations.	libcurl
dom	Used to validate Text Widget content and to automatically configure IIS7+.	libxml
exif	Works with metadata stored in images.	php-mbstring
fileinfo	Used to detect mimetype of file uploads.
hash	Used for hashing, including passwords and update packages.
igbinary	Increases performance as a drop-in replacement for the standard PHP serializer.
imagick	Provides better image quality for media uploads.	imagemagick
intl	Performs locale-aware operations.	icu
mbstring	Used to properly handle UTF8 text.
openssl	SSL-based connections to other hosts.	openssl
pcre	Increases performance of pattern matching in code searches.
xml	Used for XML parsing, such as from a third-party site.	libxml
zip	Used for decompressing Plugins, Themes, and WordPress update packages.	libzip
apcu	In-memory key-value store for PHP.
memcached	High-performance, distributed memory object caching system.
opcache	PHP can preload scripts into the opcache when the engine starts.
redis	PHP extension for interfacing with Redis.
timezonedb	Timezone Database to be used with PHP's date and time functions.
bcmath	For arbitrary precision mathematics.
filter	Used for securely filtering user input.
gd	Fallback for image manipulation if Imagick is not installed.
iconv	Used to convert between character sets.
shmop	Allows PHP to work with Unix shared memory segments.
simplexml	Used for XML parsing.
sodium	Validates signatures and provides securely random bytes.
xmlreader	Used for XML parsing.	libxml
zlib	Gzip compression and decompression.	zlib
ssh2	Provides secure access to remote machines.	openssl
ftp	Client access to FTP file servers.
sockets	Implements low-level socket communication functions.
pdo	Defines interface for accessing databases.
pdo_sqlite	SQLite PDO driver.
pdo_mysql	MySQL PDO driver.
pdo_odbc	ODBC PDO driver.
pdo_pgsql	PostgreSQL PDO driver.
dba	Access to Berkeley DB style databases.
bzip2	Handles bzip2 compressed files.
sqlite3	Support for SQLite version 3 databases.
calendar	Functions for converting between calendar formats.
gettext	Functions for internationalizing PHP apps.
gmp	Handles arbitrary-length integers.
soap	Used to write SOAP Servers and Clients.
xsl	Performs XSLT transformations.	libxslt
pcntl	Unix-style process control (not for web server environments).
pear

Note: This list may evolve based on template usage, plugin trends, and community best practices.

Compatibility Assurance

Extensions are chosen based on:

Usage data from existing websites.
Template and CMS compatibility (e.g., WordPress).
Industry-standard recommendations.

Security & Source Assurance

All extensions are:

Sourced from trusted PHP and Linux package repositories.
Scanned regularly using antivirus/malware tools.
Monitored for security advisories (CVE tracking, vendor bulletins).

Support Scope

What We Support

Ensuring extensions are available and active on newly provisioned sites.
Troubleshooting missing or disabled pre-installed extensions.

What We Don't Support

Custom extension installation requests.
Debugging third-party plugins or themes relying on unsupported or obscure extensions.
Modifying server-level PHP behavior outside the base template.

Frequently Asked Questions

Q: Can I request a new extension to be added to the base image?
A: Resellers can't install PHP extensions directly. Requests for additions can be submitted for review but aren't guaranteed.

Q: How can I check which PHP extensions are currently installed?
A: Using phpinfo. See Checking Your PHPinfo Page for instructions.

Q: Are these extensions updated automatically?
A: Yes, they are maintained through our server patching and image update process.

This document contains confidential and proprietary information intended solely for the use of OpenSRS Cloud Hosting customers. Unauthorized distribution, reproduction, or disclosure of any part of this document is strictly prohibited.