iis php web.config处理404，500等，跳转友好页面，显示500错误信息

<pre name="code" class="html"><?xml version="1.0" encoding="UTF-8"?><configuration>    <system.webserver> <httperrors errormode="DetailedLocalOnly" existingresponse="PassThrough"></httperrors>            <defaultdocument>            <files>                <add value="index.php"></add>            </files>        </defaultdocument></system.webserver></configuration>

<?xml version="1.0" encoding="UTF-8"?><configuration>    <system.webserver>       <httperrors errormode="DetailedLocalOnly"><remove statuscode="404"></remove><error statuscode="404" path="/404.htm" responsemode="ExecuteURL"></error><remove statuscode="500"></remove><error statuscode="500" path="/500.htm" responsemode="ExecuteURL"></error></httperrors>            <defaultdocument>            <files>                <add value="index.php"></add>            </files>        </defaultdocument></system.webserver></configuration>