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

iis php web.config处理404，500等，跳转友好页面，显示500错误信息
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" />
            </files>
        </defaultDocument></system.webServer>
</configuration>

404，500友好提示跳转

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>   
    <httpErrors errorMode="DetailedLocalOnly">
<remove statusCode="404"/>
<error statusCode="404" path="/404.htm" responseMode="ExecuteURL"/>
<remove statusCode="500"/>
<error statusCode="500" path="/500.htm" responseMode="ExecuteURL"/>
</httpErrors>
            <defaultDocument>
            <files>
                <add value="index.php" />
            </files>
        </defaultDocument>
</system.webServer>
</configuration>