Extensions

HHVM supports several core PHP extensions, with more being developed. Some are integrated into the virtual machine itself whereas others are separate extensions that are loaded dynamically.

Integrated Extensions

• Apache
• APC
• APD
• cUrl
• DOM
• Hash
• Image (gd)
• ImageMagick (Imagick)
• IMAP
• Intl (partially — e.g., missing NumberFormatter right now)
• IPC
• JSON
• LDAP
• Mailparse
• MB
• MCrypt
• Memcache
• Memcached
• MySQL
• PDO
• PHAR
• POSIX
• PReg
• SimpleXML
• SOAP
• SPL
• SQLite3
• XML
• ZLib

Externally-provided Extensions

• dbase
• pgsql
• shp
• ssdeep

Writing your own extensions

• Extension API