Ah, PHP is running wrong on Linux class ' XMLWriter ' not found

Ask for help AH Linux PHP run error class ' XMLWriter ' not found
Run PHP project running under Linux save when using Phpexcel for report printing

Its content is
Class ' XMLWriter ' not found in/home/httpd/morpho-internal/saiban/excel/phpexcel/shared/xmlwriter.php on line 66

Excuse me, what is the reason? Missing file or missing extension?

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Class ' XMLWriter ' not found
Class XMLWriter not found

So, you see if the class file is included in it.
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XMLWriter is a php5.3 built-in class
------Solution--------------------
Xmlwrite is a built-in class after PHP 5.1.2.
The Phpexcel class library you include needs to be php5.2.0 above the operating environment. Check that your PHP version is too low.
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My QQ is 840744233
------Solution--------------------
XMLWriter is a php5.3 built-in class, and the Phpexcel class libraries you include need to php5.2.0 above the operating environment. Check that your PHP version is too low. Try it ~

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