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How to solve loading iis error 500 using php

I am trying to upload a file to an IIS based server. here is my code:

<?php error_reporting(E_ALL); ini_set('display_errors', '1'); //ini_set('error_log','/httpdocs/error_log'); echo "upload_max_filesize: " . ini_get ("upload_max_filesize"). "<br>"; echo "post_max_size: " . ini_get ("post_max_size"). "<br>"; echo "memory_limit: " . ini_get ("memory_limit"). "<br>"; echo "max_file_uploads: " . ini_get ("max_file_uploads"). "<br>"; echo "max_execution_time: " . ini_get ("max_execution_time"). "<br>"; echo "max_input_time: " . ini_get ("max_input_time"). "<br>"; echo "file_uploads: " . ini_get ("file_uploads"). "<br>"; echo "default_socket_timeout: " . ini_get ("default_socket_timeout"). "<br>"; echo "<br>"; if ($_FILES["file"]["error"] > 0) { echo "Error: " . $_FILES["file"]["error"] . "<br>"; } else { echo "Upload: " . $_FILES["file"]["name"] . "<br>"; echo "Type: " . $_FILES["file"]["type"] . "<br>"; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>"; echo "Stored in: " . $_FILES["file"]["tmp_name"]; } ?> <html> <body> <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data"> <label for="file">Filename:</label> <input type="file" name="file" id="file"><br> <input type="submit" name="submit" value="Submit"> </form> </body> </html>

I used this error when I try to upload a file larger than 13 MB:

server error

500 - Internal server error. There is a problem with the resource you are looking for and cannot be displayed.

then I added error_reporting and I got the following:

Network Error (tcp_error)

A communication error occurred: "Cannot send more." The web server may be too busy or experience other problems that prevent it from responding to requests. You might want to try again later.

Contact your support team for help.

these are the settings:

upload_max_filesize: 20M

post_max_size: 128M

memory_limit: -1

max_file_uploads: 20

max_execution_time: 50000

max_input_time: 50000

file_uploads: on

default_socket_timeout: 6000

This is the web.config file:

 <?xml version="1.0"?> <!-- Note: As an alternative to hand editing this file you can use the web admin tool to configure settings for your application. Use the Website->Asp.Net Configuration option in Visual Studio. A full list of settings and comments can be found in machine.config.comments usually located in \Windows\Microsoft.Net\Framework\vx.x\Config --> <configuration> <!-- <configSections> <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/> <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"> <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" /> <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" /> </sectionGroup> </sectionGroup> </sectionGroup> </configSections> --> <appSettings /> <system.web> <httpRuntime executionTimeout="9000" maxRequestLength="65536" useFullyQualifiedRedirectUrl="false" minFreeThreads="8" minLocalRequestFreeThreads="4" appRequestQueueLimit="1000" enableVersionHeader="true" /> <customErrors mode="On" /> <!-- Set compilation debug="true" to insert debugging symbols into the compiled page. Because this affects performance, set this value to true only during development. --> <!-- The <authentication> section enables configuration of the security authentication mode used by ASP.NET to identify an incoming user. --> <authentication mode="Forms" /> <!-- The <customErrors> section enables configuration of what to do if/when an unhandled error occurs during the execution of a request. Specifically, it enables developers to configure html error pages to be displayed in place of a error stack trace. <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm"> <error statusCode="403" redirect="NoAccess.htm" /> <error statusCode="404" redirect="FileNotFound.htm" /> </customErrors> --> <pages> <controls> <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </controls> </pages> <httpHandlers> <remove verb="*" path="*.asmx" /> <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" /> </httpHandlers> <httpModules> <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </httpModules> <sessionState timeout="2880" /> </system.web> <system.codedom> <compilers> <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <providerOption name="CompilerVersion" value="v3.5" /> <providerOption name="WarnAsError" value="false" /> </compiler> <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <providerOption name="CompilerVersion" value="v3.5" /> <providerOption name="OptionInfer" value="true" /> <providerOption name="WarnAsError" value="false" /> </compiler> </compilers> </system.codedom> <!-- The system.webServer section is required for running ASP.NET AJAX under Internet Information Services 7.0. It is not necessary for previous version of IIS. --> <system.webServer> <security> <requestFiltering> <requestLimits maxAllowedContentLength="2147483648" /> </requestFiltering> </security> <validation validateIntegratedModeConfiguration="false" /> <modules> <remove name="ScriptModule" /> <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </modules> <handlers> <remove name="WebServiceHandlerFactory-Integrated" /> <remove name="ScriptHandlerFactory" /> <remove name="ScriptHandlerFactoryAppServices" /> <remove name="ScriptResource" /> <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </handlers> </system.webServer> <runtime> <assemblyBinding appliesTo="v2.0.50727" xmlns="urn:schemas-microsoft-com:asm.v1"> <dependentAssembly> <assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35" /> <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" /> </dependentAssembly> <dependentAssembly> <assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35" /> <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0" /> </dependentAssembly> </assemblyBinding> </runtime> </configuration>

I accessed the server remotely and tested it:

PHP Warning: POST Content-Length of 9202605 bytes exceeds the limit of 8388608 bytes in Unknown on line 0

How can I fix this problem?

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3 answers

Although I changed the PHP settings from cPanel, and whenever I used ini_get() , it gave me the settings that I had in cPanel, it did not work.

I solved it (if you can access the php.ini ) by changing the parameter from the php.ini file itself, not cPanel.

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As far as I remember, this is not a problem with php directly, but rather with IIS. You can try adding this to the web.config file and adding it to the root directory of the php projects web server.

 <system.webServer> <security> <requestFiltering> <requestLimits maxAllowedContentLength="2147483648" /> </requestFiltering> </security> </system.webServer>
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Problem: Some php files cause "HTTP 500 - Internal Server Error" when starting Windows Server 2008 and IIS as a web server.

Bugfix: We found that simple php notifications (that is, Variables are not defined) are sent to stderr using the FastCGI protocol and cause the FastCGI IIS module to fail the request and display HTTP 500 error. Disabling FastCGI logging will not allow PHP to send error information on top of stderr and generate 500 response codes for the client.

To fix this, make sure the following parameter is set in the php.ini file:

 fastcgi.logging=0

More information on FastCGI and PHP on IIS can be found here:

http://learn.iis.net/page.aspx/246/using-fastcgi-to-host-php-applications-on-iis-70/

Source: http://www.redcart.com/forums/showthread.php?t=377

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Source: https://habr.com/ru/post/1491306/

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