Zend Server User Guide > Tasks > Developing with Z-Ray > Analyzing Variables

Analyzing Variables

This topic describes how to use Z-Ray to view and analyze the PHP variables used in your code.

Note:

To use the Z-Ray, the page you are inspecting must be located on your Web server, and the Z-Ray needs to be enabled. For more information on enabling the Z-Ray, see Enabling/Disabling the Z-Ray.

To analyze variables:

Open your page in a browser.
As soon and the page loads, Z-Ray is displayed at the bottom of the page.
In Z-Ray, click the Request Info icon .
The Request Info panel is displayed, with the Superglobals tab selected by default.

In the Show filter on the left, select the type of variables you wish to view: Changed Entries, New Entries, Removed, Unchanged.
To sort the information in the Queries List, select one of the column titles.
Select a variable from the list to expand the array and see sub-tree items:
- Changed items are displayed in blue.
- New items are displayed in green.
- Removed items are displayed in red and are struck through.
- Unchanged items are not colored.
For changed variables , the previous value is displayed under the Previous Value column.

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