PHP Form help

svalding · March 27, 2008

Hey,

I just started developing in php and am in need of some help. I have a webpage built for a cellphone inventory application. Information such as the name of the user, make and model of phone, sim card number, and imei number are all stored in a mysql database.

In the code I have a query defined that populates a drop down menu from the mysql database. That piece works fantastically. What I am having problems with is getting the selected value of the menu stored to a variable so that I can run another query based on the selected value to post the rest of the information about the user in a table as follows:

username {submit button}

Cellphone number: [need data put here]

Cellphone make: [need data put here]

IMEI number: [need data here]

SIM number:[need data here]

Right now the page is set up with

 <form action="inventory.php" //same page // method="GET" //so that it puts info in URL//</form>

MadTechie · March 27, 2008

can you post the code ?

svalding · March 27, 2008

<?php
   
include getinfo.php;
        
  # Main connection information      
$db_host='localhost';
        $db_database='cellphone';
        $db_username='******';
        $db_password='********';


        $connection = mysql_connect($db_host,$db_username,$db_password); 
if (!$connection)
{
	die ("Could not connect to database using supplied credentials");
}

$db_select = mysql_select_db($db_database); 
if (!$db_select)
{
	die ("Could not select database");
}

        # Main query to populate the drop-down list
        
$query = "SELECT name FROM inventory ORDER BY name";
$query2 = "SELECT make,model,number,ime,sim FROM inventory";
        $result = mysql_query($query);
              
if (!$result)
{
	 die("Query execution problem: " . msql_error());
}
        $result2 = mysql_query($query2);
$row = mysql_fetch_assoc($result, $query2);
        $number = mysql_numrows($result);
       

echo '

<html> 
<head>
<title>Dover Chemical Cellphone Inventory System</title>
</head>
<body>
<!-- create a table for the header banner -->
<table bgcolor="00619e" height="150" width="100%">
<tr>	
	<td align="center"><font color="white" size="+24">Dover Chemical Cellphone Inventory</font></td>
</tr>
<!-- close banner table -->
</table>


<hr width=50%></hr>
<center>
<table>
        <tr>
                <td><p> Account Number: <b>994861915 </b>| Password: <b>popularscience</b> | Call : <b>1-800-331-0500</b></p></td>
        </tr>
</table>
</center>
<hr width=50%></hr>
<!-- I stole this code from the dover website for whitespace, editing the table for height. Thanks Mr. Harr!!!! -->
<table height="16%">
<tr>
	<td>
					<font color=#ffffff>
						--------- --------- --------- ---------
						--------- --------- --------- ---------
					</font>

	</td>
        </tr>
</table>

<!-- center it all up in one fell swoop! -->
<div align="center">
<!-- now we need a table to place the form in -->
<table>


<!-- form used to select the appropriate user -->
<form  action="inventory.php" method="GET">
        <?php
	<label>Select a user:</label>
		<select name="username" id="name">
		<option value="">Select a user</option>';
			for($i=0; $i<$number; $i++) {
                          $name = mysql_result($result,$i,"name");
                          echo '<option value="'; echo $row[name]; echo '"';
                          if($selectedname==$row[name])
                        echo " selected"; echo '>'; echo "$name"; } echo '</option>';
                
       /* This section builds the queries and gets the data for each criteria in the table, not sure if I need to do this much or not
         
        $getphoneinfo = "SELECT make,model FROM inventory WHERE name LIKE '$selectedname'";
        $getphonenumber = "SELECT number FROM inventory WHERE name LIKE '$selectedname'";
        $imei = "SELECT imei FROM inventory WHERE name LIKE '$selectedname'";
        $sim = "SELECT sim FROM inventory WHERE name LIKE '$selectedname'";

        $phone_query = mysql_query($getphoneinfo);
        $number_query = mysql_query($getphonenumber);
        $imei_query = mysql_query($imei);
        $sim_query = mysql_query($sim);
        
        $phone_result = mysql_result($phone_query);
        $number_result = mysql_result($number_query);
        $imei_result = mysql_result($imei_query);
        $sim_result = mysql_result($sim_query);
        


        $number_phone = mysql_numrows($phone_query);
        $number_number= mysql_numrows($number_query);
        $number_imei = mysql_numrows($imei_query);
        $number_sim = mysql_numrows($sim_query);

       */ 
        echo '         
         <input type="Submit" value="Get info">
</form>
<!-- done with the form piece -->
<!-- now we close the container -->

</table>';




echo '
<!-- now we need a table to put the various information about the users phone -->
<br />
<br />
<table align="center" width="30%" height="20%">
<tr>
	<td>Cellphone model</td><td>'; echo $phone_result; echo '</td>
</tr>
<tr>
	<td>Cellphone number</td><td>'; echo "blank" ; echo '</td>
</tr>
<tr>
	<td>IMEI number</td><td>'; echo "blank"; echo '</td>
</tr>
<tr>
	<td>SIM number</td><td>'; echo "blank"; echo '</td>
</tr>
<!-- close information table -->
</table>

</div>
<!-- poor mans whitespace, not as cool as brians -->
<br />
<br />
<br />
<!-- Copyright mumbo-jumbo...gotta cover your ass now adays -->
<center><font size="-14" face="papyrus">Copyright © 2008 Dover Chemical Corporation</font></center>

</body>
</html>
';

mysql_close();
?>

MadTechie · March 27, 2008

//...Snip
	<label>Select a user:</label>
		<select name="username" id="name">
		<option value="">Select a user</option>';
			for($i=0; $i<$number; $i++) {
                          $name = mysql_result($result,$i,"name");
                          echo '<option value="'; echo $row[name]; echo '"';
                          if($selectedname==$row[name])
                        echo " selected"; echo '>'; echo "$name"; } echo '</option>';
                
//******Add the line below
$selectedname = $_GET['username'];

echo "Selected users - $selectedname";// debug info

       /* This section builds the queries and gets the data for each criteria in the table, not sure if I need to do this much or not
         
        $getphoneinfo = "SELECT make,model FROM inventory WHERE name LIKE '$selectedname'";
//...Snip

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