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Thread: How to print Option List from HTML in php?

  1. #1
    Join Date
    Apr 2009
    Posts
    8

    How to print Option List from HTML in php?

    Hi I am new to php, I am working on my PHP assignment.
    Here is how it works,

    I have a html page contains 2 selection box, first one with course list, there are 2 buttons, add and remove, if I click add, the course name will be added to the second box, it has been done by JavaScript. Now I will write another php page to process the information in the second box containing added course information. I tried to use the following code in php page to bring up what's options in the second box, but the result comes out only with selected options:

    submit.php to process main.php added options in second box
    PHP Code:
    <?php
        $rightOptions 
    $_GET['right'];
        for(
    $i=0$i count($leftOptions); $i++)
           {
               echo(
    $leftOptions[$i] . " ");
           }
    ?>
    main.php contains 2 select boxes and 3 buttons
    PHP Code:

    <?php
        session_start
    ();
    ?>

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <link href="style.css" rel="stylesheet" type="text/css" />
    <script type="text/javascript" src = "code.js"></script>
    <title>Main Page</title>
    </head>

    <body>
    <div id="wrapper">
            <div>
            <?php
                
    // show user id on top
                
    echo "User ID: ".$_SESSION['user_id'];
            
    ?>
            </div>
            
            <div id="container1">
                <div id="topHeader"><h1>Course Selection</h1></div>
                  <div id="topContent">
               
                           
                           <form action="submit.php" method="get">
                            <div id="leftcol">
                                <select name="left" size="15" multiple="multiple">
                                    <option value="0">Select cources(s)</option>
                                    <option value="1">ITEC1000</option>
                                    <option value="2">ITEC1010</option>
                                    <option value="3">ITEC1620</option>
                                    <option value="4">ITEC1630</option>
                                    <option value="5">ITEC2010</option>
                                    <option value="6">ITEC2620</option>
                                    <option value="7">ITEC3020</option>
                                    <option value="8">ITEC3210</option>
                                    <option value="9">ITEC3230</option>
                                    <option value="10">ITEC4010</option>
                                    <option value="11">ITEC4020</option>
                                    <option value="12">ITEC4030</option>
                                    <option value="13">ITEC4040</option>
                                    <option value="14">ITEC4220</option>
                                    <option value="15">ITEC4305</option>
                                </select> 
                              </div>
                              
                            <div id="middlecol">
                                <input class="btn" name="add" type="button" value="Add &gt;&gt;"  onclick="move(left,right,'add')"/><br/>
                                <input class="btn" name="remove" type="button" value="&lt;&lt; Remove" onclick="move(right,left,'remove')"/><br/>
                                <input type="submit" name="next" value="Next>>"/>
                            </div>
                            
                            <div id="rightcol">
                                <select name="right" size="15">
                                    <option value="-1"></option>
                                </select>
                            </div>
                            </form>
                </div>
            </div>
        
            <div id="clear"></div>
            <div>
            
            
            <div id="clear"></div>
            
            <div id="container2">
                <div id="bottomHeader"><h1>Selected Courses - Detailed Information</h1></div>
                <div id="botContent"></div>
                
            </div>
        </div>
    </body>
    </html>

  2. #2
    Join Date
    Mar 2008
    Location
    Gulf Breeze, Florida
    Posts
    171
    What does the URL look like once the form has been submitted?

  3. #3
    Join Date
    Apr 2009
    Posts
    8
    localhost/a/main.php
    to
    localhost/a/submit.php

  4. #4
    Join Date
    Apr 2009
    Posts
    8
    let's make it simple, how to pass all option values into PHP?(including unselected options as well)

  5. #5
    Join Date
    Apr 2009
    Posts
    8
    there is a way to do it, I am not sure it's appropriate way to do though, first I will use JavaScript to load the select option form and iterate all options and save all options into session, then I will pull the session out in next PHP page. is this right way to use PHP?

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