Joomla
Joomla!® is free software released under the GNU General Public License.
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Pre-Installation Check

If any of these items is not supported (marked as No) then please take actions to correct them.
You cannot install Joomla! until your setup meets below requirements.

PHP Version >= 5.3.1 Yes
Magic Quotes GPC Off No
Register Globals Off No
Zlib Compression Support Yes
XML Support Yes
Database Support:
(pdo, sqlite, mysql, mysqli) 		Yes
MB Language is Default Yes
MB String Overload Off Yes
INI Parser Support Yes
JSON Support Yes
configuration.php Writeable Yes

Recommended settings:

These settings are recommended for PHP in order to ensure full compatibility with Joomla.
However, Joomla! will still operate if your settings do not quite match the recommended configuration.

Directive Recommended Actual
Safe Mode Off On
Display Errors Off On
File Uploads On On
Magic Quotes Runtime Off Off
Output Buffering Off On
Session Auto Start Off Off
Native ZIP support On On