PHP Extensions

The PHP Extensions page turns on extensions the PHP zip already ships in its ext\ folder, and installs the few it doesn't: Redis and the SQL Server drivers. No hand-edited .ini fragment needed.

Pick a version

Extensions are set per PHP version. When more than one version is installed, a PHP {version} picker at the top chooses which one you're editing; it starts on the global active version. A project pinned to PHP 8.1 uses PHP 8.1's settings, so edit that version for that project.

With no PHP installed the page says "No PHP version installed yet: install one from Switch first."

Turn an extension on or off

Extensions are grouped by category (Database, Debug, Filesystem, Format, Image, Math, Network, Performance, Security, System) and Filter extensions searches them. Each row has a label, the extension's name, a short description, and a switch.

A switch saves your choice for that version. It takes effect the next time that PHP version starts. If it's running, the page tells you so: restart that PHP service on the Services page for the change to reach your sites.

What's on by default

On by default	Off by default
curl, fileinfo, gd, intl, mbstring, mysqli, openssl, pdo_mysql, pdo_sqlite, sqlite3, zip	bcmath, bz2, calendar, com_dotnet, dba, exif, ffi, ftp, gettext, gmp, imap, ldap, odbc, opcache, pdo_odbc, pdo_pgsql, pgsql, shmop, snmp, soap, sockets, sodium, tidy, xmlrpc, xsl

redis, pdo_sqlsrv, and sqlsrv switch on as soon as you install them.

Some you'll likely want to turn on:

• pdo_pgsql for a project on PostgreSQL. Laravel otherwise fails with "could not find driver".
• bcmath, sodium, exif: common Composer requirements. The Requirements Check tells you which ones a project asks for.
• opcache is off on purpose: a stale cache can hide the code change you just made. Turn it on if you're measuring performance, not while you edit.

Badges

• special: environment-dependent or debug-only extensions (oci8, pdo_oci, zend_test, phpdbg_webhelper), not something an ordinary project needs.
• not in this build: the extension's DLL isn't in this version's ext\ folder and there's no download for it.
• not available for PHP X yet: a download exists for other PHP versions, but not this one.

Install Redis or the SQL Server drivers

PHP's Windows zip doesn't include these, so Rezure downloads checksum-verified builds (non-thread-safe x64, for PHP 7.4 through 8.5). The row's button reads Install {version}.

Extension	Version
redis	6.3.0
pdo_sqlsrv, sqlsrv	5.13.3 for PHP 8.3–8.5, 5.12.0 for 8.1–8.2, 5.10.0 for 7.4–8.0

Once installed, the extension is switched on. Restart PHP so running sites pick it up.

The SQL Server extensions also need Microsoft's ODBC Driver for SQL Server. When one of them is on and the driver is missing, the page says so ("PHP loads them without it, but every connection fails until it's installed") with an Install ODBC Driver button. See SQL Server.

Rezure installs the redis extension, not a Redis server. A Redis server isn't part of Rezure yet.

Browser vs terminal

Rezure keeps two php.ini files per version, because PHP gets started two ways:

• For your sites (and everything Rezure runs itself, like Composer during New Project): a generated php.ini that's rebuilt on every start from your switches on this page.
• For a terminal: the php.ini inside the version's own folder, such as C:\rezure\bin\php\8.4.x\php.ini. Rezure writes it once, with the extensions that were on at the time, and then leaves it to you.

So switches on this page don't change what php in a terminal loads, with one exception: extensions you install here (Redis, SQL Server) are added to the terminal php.ini too.

If an extension works in the browser but php -m in a terminal doesn't list it, open that version's own php.ini and add the line yourself:

extension=bcmath

That file is yours: Rezure only ever repairs its extension_dir and CA-bundle lines.

For settings other than extensions (memory_limit, upload_max_filesize, …) use C:\rezure\etc\php\conf.d instead; it applies to both. See PHP Configuration.

Xdebug

Xdebug isn't offered on this page yet. It's on the roadmap.

Related

• Requirements Check: which extensions a project needs
• PHP Configuration: your own php.ini settings
• PHP Versions: install more versions