Zendstudio software cannot run php solution

The zendstudio software cannot run php. when I run the php file, run & nbsp; as & nbsp; web & nbsp; application always shows that this program cannot display webpages. Php file & lt ;? Phpecho & nbsp; "hello & nbsp; wor zend studio cannot run php
When I run the php file, run as web application always displays
This program cannot display web pages.

Php file
Echo "hello world ";
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