Why Does My WordPress Import Fail with a \'POST Content-Length Exceeds Limit\' Error?

Exceeding PHP Content-Length Limit During WordPress Import

When attempting to upload an import into WordPress on a local XAMPP development environment, you may encounter the following error:

Warning: POST Content-Length of 8978294 bytes exceeds the limit of 8388608 bytes in Unknown on line 0

This error indicates that the size of the uploaded content exceeds the maximum allowed by PHP. Despite increasing the upload_max_filesize setting, the issue persists.

Solution:

PHP's default maximum content length for POST requests is 8388608 bytes (8MB). To resolve the issue, you need to update the post_max_size setting in your PHP configuration file (php.ini).

The post_max_size setting determines the maximum amount of data that can be sent via a POST request. While upload_max_filesize limits the size of individual files, post_max_size controls the overall size of the HTTP request.

To increase the post_max_size limit, open your php.ini file and locate the following line:

post_max_size = 8M

Change the value to a higher value, such as:

post_max_size = 100M

This will allow your WordPress instance to handle POST requests with a total size of up to 100MB.

Remember to restart your web server after making these changes for them to take effect.

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