View source for Optional Technical Requirements

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==<translate><!--T:1--> Optional Requirements for Joomla! 4.x</translate>==
<translate>
<!--T:2-->
This page lists ''optional'' technical requirements which are not required to install and run Joomla! but are required for some internal APIs.</translate>

<section begin=Joomla 3.x />
{| class="wikitable" border="1"
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| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
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Application</translate>'''
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|JApplicationDaemon
|<translate>
<!--T:4-->
Requires PHP's <tt>ext/pcntl</tt> and <tt>ext/posix</tt></translate>
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| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:5-->
Archive</translate>'''
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|BZ2
|<translate>
<!--T:6-->
Requires PHP's <tt>ext/bz2</tt></translate>
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|GZip
|<translate>
<!--T:7-->
Requires PHP's <tt>ext/zlib</tt></translate>
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|Zip
|<translate>
<!--T:8-->
Requires PHP's <tt>ext/zip</tt> or <tt>ext/zlib</tt></translate>
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| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:9-->
Cache</translate>'''
|-
|APC
|<translate>
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Requires PHP's <tt>ext/apc</tt> on PHP 5.3 or 5.4, <tt>ext/apcu</tt> on PHP 5.5 or 5.6, unsupported on PHP 7.x (Note: THIS NEED TO BE CHECKED)</translate>
|-
|APCu
|<translate>
<!--T:11-->
Requires PHP's ext/apcu on PHP 5.3+</translate>
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|CacheLite
|<translate>
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Requires the PEAR Cache_Lite package (tested on 1.7.16, will work with 1.8)</translate>
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|Memcache
|<translate>
<!--T:13-->
Requires PHP's <tt>ext/memcache</tt> and a Memcache server (Note: The Memcache extension is not compatible with PHP 7.x)</translate>
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|Memcached
|<translate>
<!--T:14-->
Requires PHP's <tt>ext/memcached</tt> and a Memcached server</translate>
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|Redis
|<translate>
<!--T:15-->
Requires PHP's <tt>ext/redis</tt> and a Redis server</translate>
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|Wincache
|<translate>
<!--T:16-->
Requires PHP's <tt>ext/wincache</tt> (Windows only)</translate>
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|XCache
|<translate>
<!--T:17-->
Requires PHP's <tt>ext/xcache</tt></translate>
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| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:18-->
Client adapters</translate>'''
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|LDAP
|<translate>
<!--T:19-->
Requires PHP's <tt>ext/ldap</tt></translate>
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|HTTP/Curl
|<translate>
<!--T:20-->
Requires PHP's <tt>ext/curl</tt></translate>
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|HTTP/Socket
|<translate>
<!--T:21-->
Requires PHP's <tt>fsockopen()</tt> function be enabled</translate>
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|HTTP/Stream
|<translate>
<!--T:22-->
Requires PHP's <tt>fopen()</tt> function and <tt>allow_url_fopen</tt> enabled</translate>
|-
| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:23-->
Cryptography</translate>'''
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|JCrypt
|<translate>
<!--T:24-->
Requires PHP's <tt>ext/mcrypt</tt> for all ciphers except the SodiumCipher which requires <tt>ext/sodium</tt></translate>
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|JKeychain
|<translate>
<!--T:25-->
Requires PHP's <tt>ext/openssl</tt></translate>
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| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:26-->
Database</translate>'''
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|Microsoft SQL Azure
|<translate>
<!--T:27-->
Requires PHP's <tt>ext/sqlsrv</tt> (the PHP 5.x extension only supports Windows, a Linux compatible version of the extension is available for PHP 7.x)</translate>
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|Microsoft SQL Server
|<translate>
<!--T:28-->
Requires PHP's <tt>ext/sqlsrv</tt> (the PHP 5.x extension only supports Windows, a Linux compatible version of the extension is available for PHP 7.x)</translate>
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|MySQL
|<translate>
<!--T:29-->
Requires PHP's <tt>ext/mysql</tt> (unsupported on PHP 7.x)</translate>
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|MySQLi
|<translate>
<!--T:30-->
Requires PHP's <tt>ext/mysqli</tt></translate>
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|Oracle
|<translate>
<!--T:31-->
Requires PHP's <tt>ext/pdo</tt> with Oracle support (available for 3PD only; the CMS won't run with it)</translate>
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|PDO MySQL
|<translate>
<!--T:32-->
Requires PHP's <tt>ext/pdo</tt> with MySQL support</translate>
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|PostgreSQL
|<translate>
<!--T:33-->
Requires PHP's <tt>ext/pgsql</tt></translate>
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|SQLite
|<translate>
<!--T:34-->
Requires PHP's <tt>ext/pdo</tt> with SQLite support (available for 3PD only; the CMS won't run with it)</translate>
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| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:35-->
Image</translate>'''
|-
|
|<translate><!--T:36--> Requires PHP's <tt>ext/gd</tt></translate>
|-
|
|<translate><!--T:37--> Requires PHP's <tt>ext/fileinfo</tt></translate>
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| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:38-->
Session</translate>'''
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|APC
|<translate>
<!--T:39-->
Requires PHP's <tt>ext/apc</tt> on PHP 5.3 or 5.4, <tt>ext/apcu</tt> on PHP 5.5 or 5.6, unsupported on PHP 7.x (Note: THIS NEEDS TO BE CHECKED)</translate>
|-
|Memcache
|<translate>
<!--T:40-->
Requires PHP's <tt>ext/memcache</tt> and a Memcache server (Note: The Memcache extension is not compatible with PHP 7.x)</translate>
|-
|Memcached
|<translate>
<!--T:41-->
Requires PHP's <tt>ext/memcached</tt> and a Memcached server</translate>
|-
|Wincache
|<translate>
<!--T:42-->
Requires PHP's <tt>ext/wincache</tt> (Windows only)</translate>
|-
|XCache
|<translate>
<!--T:43-->
Requires PHP's <tt>ext/xcache</tt></translate>
|-
| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:44-->
PHP Memory</translate>'''
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|memory_limit
|<translate>
This sets the maximum amount of memory in bytes that a script is allowed to allocate. This helps prevent poorly written scripts for eating up all available memory on a server.</translate>'''<translate> For Joomla, the use of a minimum of <tt>128M</tt> of memory is recommended.</translate>'''
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|-
| colspan=2 style="background-color:#c1c1c1;text-align:center" | '''<translate>
<!--T:44-->
OPTIONAL IMPROVEMENTS</translate>'''
|-
| colspan=2 style="background-color:#e1e1e1;" | '''<translate>
<!--T:45-->
String</translate>'''
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|mbstring
|<translate>
<!--T:46-->
Enable PHP's <tt>ext/mbstring</tt> for the phputf8 library to use native functions</translate>
|}
<section end=Joomla 4.x />

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[[Category:Joomla! 4.x{{#translation:}}]]
[[Category:Joomla! 4.0{{#translation:}}]]
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