如何以设定的间隔单独显示行？

Here is the issue .... I have a PHP program reading and displaying the contents (4 text fields) of a MySQL database. These records are displayed sequentially down the page. What I hope to do is read a record and display the text, have a little timer to pause and then display the next record in the same location on the page. Like a slide show of text.Here is the issue .... I have a PHP program rea