As the default setting the table showed unsorted. If I eventually click any column the table will be sorted by ascending of this column. Everything what I can do later on is to pick another column or change the ordering direction (from ascending to descending and vice versa)
I can not figure out how to skip ordering at all.
From the phpMyAdmin home page, go to Settings > Main panel > Browse mode (or Settings > Main frame for old versions), and uncheck the option Remember table's sorting, then click Save.
Then when browsing a table you can sort the columns as usual, but clicking Browse again will remove the sorting.
Tested on versions 3.5.2.2 and 4.0.10.14.