Phpmyadmin export issue: count(): Parameter must be an array or an object that implements Countable

It seems we can't remove all the issues from PhpMyAdmin with PHP 7.2+. But we can remove this issue by change in one line in file libraries/plugin_interface.lib.php file at line no 532.

Below is the screenshot for the fix.

Before fix code looks like:-

After fix code looks like:-

Above is the only fix to solve error messages in export database screen.

Yes if you're using phpMyAdmin version 4.6.6deb4, you'll get this error.

In my /usr/share/libraries/phpmyadmin/sql.lib.php file, on line 613 specifically, there seems to be an error in the if statement. Change

|| (count($analyzed_sql_results['select_expr'] == 1)

to this

|| ((count($analyzed_sql_results['select_expr']) == 1)

The first code line is attempting to count the result of a boolean expression with outputs a non-countable value ('false' or 'true').

After this change, the error went away.

After testing it on PHP 7.2.10 you need to change that line like this:

if ($options != null && count(array($options)) > 0) {