View source for Environment

Location: ''Administration > Server > Environment''


The environment page enables you to check that your site meets all system requirements for your current and future versions of Moodle. It is important to check system requirements prior to [[Upgrading|upgrading]].


==Moodle version 1.5.3==

*MySQL version - 3.23 or later is required
*PHP version - 4.1.0 or later is required 
*The php_extension mbstring is recommended to be installed/enabled

==Moodle version 1.6==

*MySQL version 4.1.12 or later for sites that are exclusively [http://czyborra.com/charsets/iso8859.html Latin-1], 4.1.16 if you have other languages, or PostgreSQL 7.4.x or later
*PHP version 4.3.0 or later is required (but don't use versions 5.0.0 to 5.0.6 which were buggy)
*The php_extension iconv is recommended to be installed/enabled
*The php_extension mbstring is recommended to be installed/enabled

==Moodle version 1.8==

*MySQL version 4.1.16 or later is required, or PostgreSQL 7.4.x or later
*PHP version 4.3.0 or later is required (but don't use versions 5.0.0 to 5.0.6 which were buggy)
*[[admin/environment/unicode|Unicode]] is required
*The [[admin/environment/php extension/curl|php_extension curl]] is recommended to be installed/enabled
*The [[admin/environment/php extension/iconv|php_extension iconv]] is recommended to be installed/enabled
*The [[admin/environment/php extension/mbstring|php_extension mbstring]] is recommended to be installed/enabled
*The [[admin/environment/php extension/openssl|php_extension openssl]] is recommended to be installed/enabled
*The [[admin/environment/php_extension/tokenizer|php_extension tokenizer]] is recommended to be installed/enabled
*The [[admin/environment/php_extension/xmlrpc|php_extension xmlrpc]] is recommended to be installed/enabled
*The [[admin/environment/php_extension/ctype|php_extension ctype]] is recommended to be installed/enabled

==Moodle version 1.9==
===PHP ===
* PHP version 4.3.0 or later is required
* PHP Settings. Check these settings in your php.ini or .htaccess file (if you're using Apache). For settings which use ON/OFF as their values, you can substitute 1 for ON and 0 for OFF if you prefer. 
** ''register_globals'' '''MUST''' be OFF
** ''safe_mode'' needs to be OFF.
** ''memory_limit'' should be at least 16M (32M is recommended for Moodle 1.7 and 40M for Moodle 1.8 or later). Large sites may need more than 128M. PHP 5.2.x requires higher memory_limit values than previous versions of PHP. 64bit operating systems require even more memory.
** ''session.save_handler'' needs to be set to FILES.
** ''magic_quotes_gpc'' should be ON.
** ''magic_quotes_runtime'' needs to be OFF.*** ''file_uploads'' needs to be ON.
** ''session.auto_start'' needs to be OFF.
** ''session.bug_compat_warn'' needs to be OFF.
* PHP Extensions and libraries
** The mbstring extension is recommended.
** The iconv extension is recommended for Moodle 1.6 or later.
** [http://www.libgd.org/ GD library] and the [http://www.freetype.org/ FreeType 2] library and extensions are needed to be able to look at the dynamic graphs that the logs pages make. (Freetype support is available as part of the GD extension for the 5.x versions of PHP).
** The mysql extension is required if you are using the MySQL database. Note that in some Linux distributions (notably Red Hat) this is an optional installation.
** The pgsql extension is required if you are using the PostgreSQL database.
** The curl extension is recommended.
** The tokenizer extension is recommended.
** The curl and openssl extensions are required for the Moodle network functionality.
** The xmlrpc extension is required for the Moodle network functionality.
** The ctype extension is recommended.
** Other PHP extensions may be required.

===Database===
* Database (pick one):
** MySQL 4.1.16 or
** Postgres 8.0 or
** MSSQL 9.0 or
** Oracle 9.0

===See also ===
*[[Installing Moodle 1.9]]
*[[Upgrading to Moodle 1.9]]

==Moodle version 2.0==
===Requirements ===
* PHP: 5.2.8 or later is required
* Database (pick one):
** MySQL 4.1.16 or
** Postgres 8.0 or
** MSSQL 9.0 or
** Oracle 9.0
** SQLite 3 (experimental) 

===See also ===
*[[Installing Moodle 2.0]]
*[[Upgrading to Moodle 2.0]]

[[Category:Environment]]
[[Category:Moodle 2.0]]

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