Fatal Error in exporting the moodle database

问题

I was trying to export the database from phpmyadmin and this error is showing up

"Fatal error: Uncaught TypeError: Argument 5 passed to PhpMyAdmin\Export::getFilenameAndMimetype() must be of the type string, null given, called in C:\xampp\phpMyAdmin\export.php on line 380 and defined in C:\xampp\phpMyAdmin\libraries\classes\Export.php:270 Stack trace: #0 C:\xampp\phpMyAdmin\export.php(380): PhpMyAdmin\Export->getFilenameAndMimetype('database', '', Object(PhpMyAdmin\Plugins\Export\ExportSql), '', NULL) #1 {main} thrown in C:\xampp\phpMyAdmin\libraries\classes\Export.php on line 270"

And i tried to remove the cookies of phpmyadmin from the browser but this is not helping. This is only happening in moodle database other databases exporting fine. So how can i resolve this.

回答1:

You have 2 possible ways to do that.

1) By using command line

1. Open up a command prompt: Start -> Run -> cmd
2. cd c:\xampp\mysql\bin

3. Enter the following command in terminal

   mysqldump -u root -p databasename > c:\xampp\newdbname-backup.sql
   

   Or

   mysqldump -u root -p[root_password] [database_name] > dumpfilename.sql 
   

4. Paste the password when prompted

2) Or use phpmyadmin (usually installed with XAMP), or something like that and export it from browser

I would recommend you to go with first option.

回答2:

In php.ini, first remove comma to uncomment and increase value of max_input_vars. Default value would be 1000 increase it

来源：https://stackoverflow.com/questions/60369890/fatal-error-in-exporting-the-moodle-database