Why is My PHPMyAdmin Import File Size Limited to 2MB Despite Adjusting php.ini Settings?

PHPMyAdmin Import File Size Restrictions

Despite altering the php.ini parameters, users in Zend Server CE and Ubuntu VirtualBox environments may encounter a 2MB import limit in PHPMyAdmin. This query explores the cause of the issue and provides a detailed resolution.

Determining the Cause

The limitation in PHPMyAdmin is not solely governed by php.ini settings. Additional factors, such as the maximum file upload size for HTTP requests or the memory allocation limit for PHP, could be contributing to the problem.

Finding the php.ini File

Locate the php.ini file on the server. For Zend Server CE, it may be in the following directories:

• /etc/php5/apache2/php.ini
• /etc/php/7.0/apache2/php.ini

Editing the php.ini File

Once the php.ini file is located, make the following changes:

1. Increase the post_max_size to a value larger than the database size, e.g., post_max_size = 25M.
2. Set the memory_limit to a value greater than post_max_size.
3. Ensure that upload_max_filesize is less than both post_max_size and memory_limit.

Restarting Apache

Restart the Apache service (e.g., sudo /etc/init.d/apache2 restart) to apply the changes.

Additional Note

It's essential to remember the order of these parameters:

• memory_limit
• post_max_size
• upload_max_filesize

The order should follow from highest value to lowest value. By following these steps, users should be able to resolve the import file size limit issue in PHPMyAdmin.

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