Jump to content

Using <select><option>?</option></select> to display text.


Steve_Berry
 Share

Go to solution Solved by ginerjm,

Recommended Posts

I am trying to use a <select> <option> to display text on a web page.  The data comes from a database.

This is what I am attempting:  When an option is selected and submit button clicked them some text will be displayed.

At the moment I do have text on the web page, but none of the selected options change this.  I have four pieces of text: Page 1, Page 2 etc. At the moment Page 4 text is displayed.  I would like each piece of text to be displayed.

This is the php:

<?php
//  Connect to the database
    $pdo = new PDO("mysql:host=localhost;dbname=###", "###", "");
   
    $sql = "SELECT * FROM testdb ORDER BY id";
    try {
      $stmt = $pdo->prepare($sql);
      $stmt->execute();
      $data = $stmt->fetchAll();
    }
  catch(Exception $ex){
    echo ($ex -> getMessage());
  }

?>

This is the html:

<form name="###" method="post" action="#">
      <p></p>
      <select onchange="reload(this.form)">
        <option>test one</option>
        <?php foreach ($data as $output) { ?>
          <option value=''><?php echo $output['header']; ?></option>
      <?php  } ?>
      </select>
      <br>
      <button type="submit" value="submit">Submit</button>
    </form>

    <?php echo $output['pages']; ?>

I would appreciate help with this.  However, from previous attempts at adding data to a page I used isset() and I think $_POST(), possibly together.  If these are the things I need to use, then please could you include their usage within any examples you feel would help.  Thank you.

Link to comment
Share on other sites

I have tried a few things, as a beginner I guessed what I needed to do.  The following code is what I have tried - not working obviously.  Am I on the right track.  If not I would appreciate an example.

Thanks.

<select onchange="reload(this.form)">
  <option>test one</option>
  	<option>
    	<?php foreach ($data as $output) {

     		echo $output['header'];

        } ?>
  </option>
</select>

 

Link to comment
Share on other sites

  • Solution

Try this instead

$select_tag = "<select onchange='reload(this.form)'>";
$select_tag .= "<option>test one</option>";
foreach ($data as $output) 
{
	$select_tag .= "<option>" . $output['header'] . "</option>";
}
$select_tag .= "</select>";

Now - in your html area simply place the $select_tag var where you want this html to show up.

  • Like 1
Link to comment
Share on other sites

Hello, after some search, testing etc.  I found something online to help with what I have been trying to do. I displays the options fine, but I still don't get the required data to display.  For example, <option value="Page 1">Page 1</option> does not show Page 1 text.

I also have an if else statement where the else part does not appear to work - no message.

This is the code:

<div class="container">
    <form name="myForm" method="post" action="">
      <div class="select-block">
        <select name="Pages">
          <option value="" disabled selected>Testin 123</option>
          <option value="Page 1">Page 1</option>
          <option value="Page 2">Page 2</option>
          <option value="Page 3">Page 3</option>
          <option value="Page 4">Page 3</option>
        </select>
      </div>

      <input type="submit" name="submit" value="Submit">
    </form>

    <?php
      if(isset($_POST['myForm'])){
        if(!empty($_POST['Pages'])) {

          //Connect to the database
          $pdo = new PDO("mysql:host=localhost;dbname=timeline", "root", "");
          $sql = "SELECT * FROM testdb ORDER BY id";
          $stmt = $pdo->prepare($sql);
          $stmt->execute();
          $data = $stmt->fetchAll();
          echo $data['pages'];

        } else {
          echo 'Please select an option.';
        }
      }

    ?>
  </div>

Please, could you help with the code.   Thanks

Link to comment
Share on other sites

4 hours ago, Steve_Berry said:

there should be some text, but the page just resets.

That's because all you are doing is resetting the page

<select onchange="reload(this.form)">
  

You need to send the form data. Try...

<select name="page" onchange="this.form.submit()">
  

and change

8 hours ago, Steve_Berry said:
if(isset($_POST['myForm'])){

to

if ($_SERVER['REQUEST_METHOD']=='POST') {

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.