webguync Posted November 12, 2011 Share Posted November 12, 2011 I am working on a project where I want a select form to display information from a MySQL table. The select values will be different sports (basketball,baseball,hockey,football) and the display will be various players from those sports. I have set up so far two tables in MySQL. One is called 'sports' and contains two columns. Once called 'category_id' and that is the primary key and auto increments. The other column is 'sports' and contains the various sports I mentioned. For my select menu I created the following code. <?php #connect to MySQL $conn = @mysql_connect( "localhost","uname","pw") or die( "You did not successfully connect to the DB!" ); #select the specified database $rs = @mysql_SELECT_DB ("test", $conn ) or die ( "Error connecting to the database test!"); ?> <html> <head>Display MySQL</head> <body> <form name="form2" id="form2"action="" > <select name="categoryID"> <?php $sql = "SELECT category_id, sport FROM sports ". "ORDER BY sport"; $rs = mysql_query($sql); while($row = mysql_fetch_array($rs)) { echo "<option value=\"".$row['category_id']."\">".$row['sport']."</option>\n "; } ?> </select> </form> </body> </html> this works great. I also created another table called 'players' which contains the fields 'player_id' which is the primary key and auto increments, category_id' which is the foreign key for the sports table, sport, first_name, last_name. The code I am using the query and display the desired result is as follows <html> <head> <title>Get MySQL Data</title> </head> <body> <?php #connect to MySQL $conn = @mysql_connect( "localhost","uname","pw") or die( "Err:Db" ); #select the specified database $rs = @mysql_SELECT_DB ("test", $conn ) or die ( "Err:Db"); #create the query $sql ="SELECT * FROM sports INNER JOIN players ON sports.category_id = players.category_id WHERE players.sport = 'Basketball'"; #execute the query $rs = mysql_query($sql,$conn); #write the data while( $row = mysql_fetch_array( $rs) ) { echo ("<table border='1'><tr><td>"); echo ("Caetegory ID: " . $row["category_id"] ); echo ("</td>"); echo ("<td>"); echo ( "Sport: " .$row["sport"]); echo ("</td>"); echo ("<td>"); echo ( "first_name: " .$row["first_name"]); echo ("</td>"); echo ("<td>"); echo ( "last_name: " .$row["last_name"]); echo ("</td>"); echo ("</tr></table>"); } ?> </body> </html> this also works fine. All I need to do is tie the two together so that when a particular sport is selected, the query will display below in a table. I know I need to change my WHERE clause to a variable. This is what I need help with. thanks Quote Link to comment Share on other sites More sharing options...
webguync Posted November 12, 2011 Author Share Posted November 12, 2011 I know that is a lot of code. A few more lines I forgot to add. I changed in my form code to <form name="sports" id="sports" action="Query.php" method="post" > my also added in my php code $id=["category_id"]; #create the query $sql ="SELECT * FROM sports INNER JOIN players ON sports.category_id = players.category_id WHERE players.sport = '.$_GET[$id]'"; still doesn't work but I think I am getting close. Quote Link to comment Share on other sites More sharing options...
webguync Posted November 13, 2011 Author Share Posted November 13, 2011 I figured this out. Changed $_GET to $_POST, added a submit button and changed to method="POST", changed a little bit of the Query and voila! Quote Link to comment Share on other sites More sharing options...
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