PHP/HTML Query from Dropdown menu -


below create tables, html file has drop down menu has artists, , php file based on artist displays title's of albums artist.

i can't seem php file work. can value drop down menu, don't think can values database using value.

connects database

<?php  // connect.php  // include file providing function connect mysql database  // include file on every page needs connect db.   // usage:  // include('connect.php');   // declare connection function  function dbconnect ($name, $pw) { // create mysql connection $connection = mysql_connect("localhost", $name, $pw); // select correct database mysql_select_db("usr_".$name."_1", $connection);   }   // call connect function  // first argument user name  // second argument password  dbconnect('yourusername', 'yourpassword');  ?>

tables 

 create table cd (  cdnum int not null,  title varchar(40),  artist varchar(40),  category varchar(20),  price numeric(6,2)  ) engine = innodb;   create table customer (  cnum int not null,  cname varchar(25),  ccity varchar(25)  ) engine = innodb;    create table buys (  cnum int not null,  cdnum int not null,  qty int not null   ) engine = innodb;

html file has drop down menu.

<html> <head> <title> listartist </title> <meta name="author" content=""> </head> <body> <h1>find artist's albums page</h1> dropdown list of artists, user should able pick artist , see list of albums      (all fields in cd table) artist. <hr> <form action="listartist.php" method="post"/> artist: <select name="mydropdown"> <option value="pink floyd">pink floyd</option> <option value="pearl jam">pearl jam</option> <option value="shania twain">shania twain</option> <option value="gwen stefani">gwen stefani</option> <option value="vince gill">vince gill</option> <option value="dixie chicks">dixie chicks</option> </select> <br> <br> <input type="submit" value="list artist"/> </form> </body> </html>

php file suppose take artist user , display title's of albums.

 <html>  <head>  <title>listartist.php</title>  </head>  <body>   <h1>printschedule form action php page </h1>   <p>   <?php // include files: // connection function include('connect.php');  $dd = $_post['mydropdown'];  // used fixed-width font echo "<pre>\n";  // print id (name) echo "albums of artist: $dd\n";  // set format string $fmt = "%40s\n";  // print header line printf($fmt, "album name");  // person likes $r1 = mysql_query("select title cd artist = '$dd'"); echo($r1[0]); // loop on courses, printing each 1 while ($r = mysql_fetch_row($r1)) {      printf($fmt,$r[0]);     echo($r[0]); }  // free result set mysql_free_result($r1);  echo "</pre>\n";  ?>  </body>  </html>


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