How can i read the below xml using PHP?

How can i read the below xml in a php file?

<?xml version="1.0" ?>
<Response command="GenerateReport" module="DB" status = "success">
<Applied_Filters>
<Groups> Customer_Name</Groups>
<Period>01/24/2015</Period>
<Time_Zone>India Standard Time</Time_Zone>
</Applied_Filters>
<Report name="All Nodes CPU Usage">
<Row>
<Column id="Node" name="Node">azim_182.18.153.103</Column>
<Column id="ResourceName" name="ResourceName">0</Column>
<Column id="MaxUsage(%)(graph)" name="MaxUsage">13.00</Column>
<Column id="AvgUsage(%)(graph)" name="AvgUsage">2.19</Column>
</Row>
<Row>
<Column id="Node" name="Node">azim_premji_fw</Column>
<Column id="ResourceName" name="ResourceName">FG100C3G11609780</Column>
<Column id="MaxUsage(%)(graph)" name="MaxUsage">3.00</Column>
<Column id="AvgUsage(%)(graph)" name="AvgUsage">2.18</Column>
</Row>
</Report>
</Response>