These links take you to YouTube videos.  All videos were found in the Science and Technology category.  Each video provides a rating, and user comments and responses. Video titles are how they appear on YouTube.

http://www.youtube.com/watch?v=SQw645qw1os
PHP, HTML Tutorial // POST, Table, Forms (Runtime: 21:35).

http://www.youtube.com/watch?v=Uvm2alSPXOA
PHP Tutorial // Math (add, sub, mul, div, sqrt) (Runtime: 5:46).

http://www.youtube.com/watch?v=8JRICTFnViM
PHP Tutorial // User Login and Cookies (Runtime: 8:54).

http://www.youtube.com/watch?v=1m7IepYfxrs
Configuring for PHP (Runtime 9:21).

http://www.youtube.com/watch?v=BRd4xguBX6A
PHP Tutorial // Calculator (Runtime: 9:49).

http://www.youtube.com/watch?v=OQ14NjbEXJM
PHP Tutorial // User Registration with SQL (Runtime: 16:20).

http://www.youtube.com/watch?v=CpPTz__mJgo
|PHP Tutorial // Variables, If and Else (Runtime: 2:55).

http://www.youtube.com/watch?v=WCBisPfjopc
PHP Tutorial: Echo, Else..If, Variables (Runtime: 6:13).

http://www.youtube.com/watch?v=6W8oxPmt3Qo
PHP-Only.com tutorial: Learn all about Loops and Array (Runtime: 8:49).

http://www.youtube.com/watch?v=7Nl4xXU6ZzE
PHP-Nuke (web based new publishing and content management system based on PHP and MySQL) (Runtime: 6:55).

http://www.youtube.com/watch?v=d3XENwFD4_s
Installing PHP5 for Windows (Runtime: 1:58).

http://www.youtube.com/watch?v=J4x5sHCFdY0
PHP Shoutbox Tutorial: Intro (Runtime: 4:24).

http://www.youtube.com/watch?v=yXINB8nqZu0
PHP MySQL (Runtime: 9:07).