413 request entity too large nginx: While running a WordPress website, there can be instances when you are not able to upload any file on the website. And when it happens the chances are high that your website ran into the HTTP error 413 request entity too large. This error takes place on a website when you try to upload a very large file on your website. And because of the size of this file, you come across the error 413.All about HTTP Error 413 | A Detailed Overview
When you run a website, at some point of time you might need to upload a few files. If you upload files that are within the specific size limits, everything goes fine. But if you pick a file that is larger in size the web server becomes unable to process this file. Generally it happens with websites that have a particular HTTP request size limit already set up. In most of the cases the web hosting providers allow the users to upload large media files without facing any issues. But if still it happened with you, there is no need to worry as here we are going to discuss all the possible solutions to fix this problem. Since this issue is related to the web server so the solution also depends on the same. The method of troubleshooting this error can vary from one web server to another. The very first thing you can try to fix this issue is, make some changes in the server in a way that it can allow the maximum HTTP request size.
If you have come across 413 request entity too large nginx then this solution will not work for you. In such cases, there are three different methods that you can use to fix this issue.

Method 1 - Increase Upload File Size Limit via Functions File:

The very first way is to increase the upload file size limit using the functions file. All you have to do is, paste the code mentioned below in the functions.php file of your theme.
@ini_set( 'upload_max_size' , '64M' );
@ini_set( 'post_max_size', '64M');
@ini_set( 'max_execution_time', '300' );

It is not necessary that you set the file ze limit equal to the size of the file you are trying to upload. You can set it more than that as well. And also do not forget to increase the max_execution_time to the time you think it would take for the file to upload. If you have non idea how much time it will take then simply double the current value of time.

Also Read: HTTP Error 403 Forbidden Error!

Method 2 - Increase Upload File Size Limit via .htacces File:
If the above method does not work that you have another option. You can increase the upload file size limit using the .htaccess file. For this, you will have to paste the code mentioned below in the .htaccess file.
php_value upload_max_filesize 64M
php_value post_max_size 64M
php_value max_execution_time 300
php_value max_input_time 300

Method 3 - Upload the Media File using FTP:

If this error took place on your website when you were trying to upload one particular file then you can try using a different method. In order to fix this issue, you can try uploading the file manually using FTP.

Wrapping Up!

When you run a website no matter which platform it is built on, you will encounter a few HTTP errors every now and then. And HTTP error 413 request entity too large is one of those errors. If you are also facing this error and have no idea how to fix this then you can find your solution here.
If you have reached this point, the chances are high that you must have got a clear understanding about this. But if you still find anything confusing, we are just a call away. Many skilled WordPress professionals are working with us. They will assist you with your queries. We are available on 1-866-332-O276 for backup service