Adding form fields

[music_man]

Hi

I am trying to make this system whereby the user can add form fields based on what number they type in.

It seems to work after I have pushed "Next step" - which comes up with an error, and then push "Add".

I am using sessions and I don't know how to keep all the items when they click "Add" or "Next step" as they are different form fields. I was wondering about putting them all into an array and then exploding them into comma separated entries.

Here is the order page:

<?php
session_start();
$pgn="order";
include("inc/header.php");
if($_SESSION['order_status'] == "")
{
    $topsteps = "<p class=\"topsteps\"><a href=\"order.php?step=1\">Step 1</a> | Step 2 | Step 3</p>";
}
elseif($_SESSION['order_status'] == "2")
{
    $topsteps = "<p class=\"topsteps\"><a href=\"order.php?step=1\">Step 1</a> | <a href=\"order.php?step=2\">Step 2</a> | Step 3</p>";
}
elseif($_SESSION['order_status'] == "3")
{
    $topsteps = "<p class=\"topsteps\"><a href=\"order.php?step=1\">Step 1</a> | <a href=\"order.php?step=2\">Step 2</a> | <a href=\"order.php?step=3\">Step 3</a></p>";
}
?>

<div id="content">
  <p class="header">Order</p>
  <?php
switch ($step)
{
    default:
    ?>
  <?php echo "$topsteps";
    ?>
  <p class="header">Step 1: Personal details</p>
  <form method="post" action="inc/order.php?step=1" id="orderform">
    <div class="form" id="orderformformat">
      <?php if($_GET['msg'] == "error")
    {
        echo "<div class=\"error\">Please fill in:<ul>$message</ul></div>";
    }
    ?>
      <p class="explanation">Please fill in your personal details</p>
      <label for="first_name">First name:</label>
      <input type="text" id="first_name" name="first_name" value="<?php echo $_SESSION['first_name'];
    ?>" />
      <br />
      <label for="last_name">Last name:</label>
      <input type="text" id="last_name" name="last_name"  value="<?php echo $_SESSION['last_name'];
    ?>" />
      <br />
      <label for="cellphone">Cellphone:</label>
      <input type="text" id="cellphone" name="cellphone"  value="<?php echo $_SESSION['cellphone'];
    ?>" />
      <br />
      <label for="street_number">Street number:</label>
      <input type="text" id="street_number" name="street_number"  value="<?php echo $_SESSION['street_number'];
    ?>" />
      <br />
      <label for="street_name">Street name:</label>
      <input type="text" id="street_name" name="street_name"  value="<?php echo $_SESSION['street_name'];
    ?>" />
      <br />
      <label for="street_name">Suburb:</label>
      <input type="text" id="suburb" name="suburb"  value="<?php echo $_SESSION['suburb'];
    ?>" />
      <br />
      <label for="city">City:</label>
      <select id="city" name="city">
        <option<?php if($_SESSION['city'] == "Wellington")
    {
        echo " selected=\"selected\"";
    }
    ?>>Wellington</option>
        <option <?php if($_SESSION['city'] == "Palmerston North")
    {
        echo "selected=\"selected\"";
    }
    ?>>Palmerston North</option>
      </select>
      <br />
      <label for="city">Email address:</label>
      <input type="text" id="email_address" name="email_address" value="<?php echo $_SESSION['email_address'];
    ?>" />
      <br />
      <br />
      <input type="submit" value="Next step -> Adding your items" />
    </div>
  </form>
  <?php
    break;
    case "2": ?>
  <?php if($_SESSION['order_status'] == "1")
    {
        die("<div class=\"error\">You need to do step one fully first</div>");
    }
    ?>
  <?php echo "$topsteps";
    ?>
  <p class="header">Step 2: Adding your items</p>
  <form method="post" action="inc/order.php?step=2" id="orderform">
    <div class="form" id="orderformformat">
    <?php if($_GET['msg'] == "error")
    {
        echo "<div class=\"error\">Please fill in:<ul>$message</ul></div>";
    }
    ?>
    <ol>
      <?php
if($_SESSION['items_submitted'] !== "yes") {
$item_offset = 5; } else {
    $item_offset = $_SESSION['item_offset'];
}
    for($i = 1;
    $i <= $item_offset;
    $i++)
    {
        echo "<li><input type=\"text\" id=\"item_".$i."\" name=\"item_".$i."\" value=\"" . $_SESSION['item_$i'] . "\" /></li>";
    }
    ?>
    </ol>
	  <p>You can add some more items at $25 per item:</p>
    <input type="hidden" id="item_offset" name="item_offset" value="<?php echo "$item_offset"; ?>">
    <input type="text" id="addnumber" name="addnumber" size="2" />
    <input type="submit" value="Add" id="Add" name="Add" />
<br />
    <input type="submit" value="Next step" id="next_step" name="next_step" />
  <hr />

  </form>
</div>
<?php
    break;
    case "3": ?>
<form method="post" action="inc/order.php?step=1" id="orderform">
  <div class="form" id="orderformformat">
    <?php if(($_SESSION['order_status'] == "1") || ($_SESSION['order_status'] == "2"))
    {
        die("<div class=\"error\">You need to do the first two steps fully first</div>");
    }
    ?>
    <?php echo "$topsteps";
    ?>
    <p class="explanation">When would you like us to pick it up?</p>
    <!-- calendar -->
    <br />
    <label for="time">Time:</label>
    <input type="text" name="time" id="time" size="2" value="11.00" onClick="this.value='';
    " name="time"/>
    <select name="timeset">
      <option>am</option>
      <option>pm</option>
    </select>
    <p class="datetimeoptions" style="hidden"></p>
    <input type="submit" value="Submit order" />
  </div>
</form>
<?php
}
?>
</div>
</div>
<?php include("inc/footer.php");
?>

And the process page

<?php 

/* Start a new session for confirmation and error purposes */

session_start();

$_SESSION['message'] = '';

$_SESSION['msg'] = '';

$_SESSION['item_offset'] = '';


error_reporting(E_ALL);

if($_GET["step"]=="1") {

session_register ("first_name");
session_register ("last_name"); 
session_register ("street_number");
session_register ("street_name");
session_register ("cellphone");
session_register ("city");
session_register ("suburb");
session_register ("email_address");
session_register ("msg");
session_register ("message");
session_register ("order_status");

$first_name = stripslashes(trim($_POST["first_name"]));
$last_name = stripslashes(trim($_POST["last_name"]));
$cellphone = stripslashes(trim($_POST["cellphone"]));
$street_number = stripslashes(trim($_POST["street_number"]));
$street_name = stripslashes(trim($_POST["street_name"]));
$suburb = stripslashes(trim($_POST["suburb"]));
$city = stripslashes(trim($_POST["city"]));
$email_address = stripslashes(trim($_POST["email_address"]));

$_SESSION['first_name'] = $first_name;
$_SESSION['last_name'] = $last_name;
$_SESSION['cellphone'] = $cellphone;
$_SESSION['street_number'] = $street_number;
$_SESSION['street_name'] = $street_number;
$_SESSION['suburb'] = $suburb;
$_SESSION['city'] = $city;
$_SESSION['email_address'] = $email_address;

$error="no";

if($first_name=='') {

$message = "<li>First name</li>";
$error = "yes";

}

if($last_name=='') {

$message .= "<li>Last name</li>";
$error = "yes";

}

if($cellphone=='') {

$message .= "<li>Cellphone</li>";
$error = "yes";

}

if($street_number=='') {

$message .= "<li>"."Street number</li>";
$error = "yes";

}

if($street_name=='') {

$message .= "<li>Street name</li>";
$error = "yes";

}

if($suburb=='') {

$message .= "<li>Suburb</li>";
$error = "yes";

}

$okay = preg_match(
      '/^[A-z0-9_\-]+[@][A-z0-9_\-]+([.][A-z0-9_\-]+)+[A-z]{2,4}$/', 
      $email_address
    ); 
    if ($okay) { 
      $valid = TRUE; 
    } else { 
      $valid = FALSE;
    } 

if($email_address=='') {

$message .= "<li>Email address</li>";
$error = "yes";

}elseif(!$valid) {

$message .= "<li>Valid email address</li>";
$error = "yes";

}

if($error=="yes") {

$_SESSION['order_status'] = "1";

$_SESSION['message'] = $message;

$_SESSION['msg'] = "error";

header("Location: http://www.williamparry.com/studentstorage/order.php?step=1&msg=error");

} elseif($error=="no") {

/* find a better way to make sure they have done the previous step */

$_SESSION['order_status'] = "2";

header("Location: http://www.williamparry.com/studentstorage/order.php?step=2");

}

}
if(($_GET["step"]=="2")&&(isset($_POST["Add"])))

{

session_register ("item_offset");

$item_offset = stripslashes(trim($_POST["item_offset"]));
$addnumber = stripslashes(trim($_POST["addnumber"]));

$_SESSION['item_offset'] = $item_offset + $addnumber;

header("Location: http://www.williamparry.com/studentstorage/order.php?step=2");

} elseif(($_GET["step"]=="2")&&(isset($_POST["next_step"]))) {

$error="no";

session_register ("items");
session_register ("msg");
session_register ("message");
session_register ("item_offset");
session_register ("items_submitted");

$_SESSION['items'] = $items;
$_SESSION['item_offset'] = $item_offset;
$_SESSION['items_submitted'] = "yes";

if($items=='') {

$message .= "<li>Please fill in your items</li>";
$error = "yes";

}

if($error=="yes") {

$_SESSION['order_status'] = "2";

$_SESSION['message'] = $message;

$_SESSION['msg'] = "error";

header("Location: http://www.williamparry.com/studentstorage/order.php?step=2&msg=error");

} elseif($error=="no") {

/* find a better way to make sure they have done the previous step */

$_SESSION['order_status'] = "2";

header("Location: http://www.williamparry.com/studentstorage/order.php?step=2&msg=total");

}


}

?>

[leatherback]

What is your specific question?

[music_man]

How can I make it so that when they click "Add", it adds form fields to the form?

[Houdini]

You might want to look at the PHP:Manual session_register()
Caution

If you are using $_SESSION (or $HTTP_SESSION_VARS), do not use session_register(), session_is_registered(), and session_unregister().

[music_man]

So according to the manual I should just get rid of my session_register because it is deprecated?

$_SESSION["zim"] = "An invader from another planet.";

Is only setting the session variable "zim" to "An invader from another planet"

Do I not need to initiate a session in which to set variables?

[ClarkF1]

You already have with session_start();

[music_man]

Oh so I have. So I can just get rid of all those session_register's then?

[ClarkF1]

Yup.........

[music_man]

Thanks. Any ideas on why I can't add those form fields?

[music_man]

I have done some work on it. I have made it so that the form fields are an array and it is imploded into the session variable then exploded and looped on the order form.

The issue I have now is that the form adds fields if I push submit and not "Add"

<?php
session_start();
$pgn="order";
include("inc/header.php");
?>

<div id="content">
  <div style="float: right"> <img src="images/steps/step1.gif" alt="step 1" /> <br />
    <img src="images/steps/step2.gif" alt="step 2" /> <br />
    <img src="images/steps/step3.gif" alt="step 3" /> </div>
  <p class="header">Order</p>
  <form method="post" action="inc/order.php" id="orderform">
    <div class="form" id="orderformformat">
      <?php if($_GET['msg'] == "error")
    {
        echo "<div class=\"error\">Please fill in:<ul>$message</ul></div><br />";
    }
    ?>
      <p class="explanation">Please fill in your personal details</p>
      <label for="first_name">First name:</label>
      <input type="text" id="first_name" name="first_name" value="<?php echo $_SESSION['first_name'];
    ?>" />
      <br />
      <label for="last_name">Last name:</label>
      <input type="text" id="last_name" name="last_name"  value="<?php echo $_SESSION['last_name'];
    ?>" />
      <br />
      <label for="cellphone">Cellphone:</label>
      <input type="text" id="cellphone" name="cellphone"  value="<?php echo $_SESSION['cellphone'];
    ?>" />
      <br />
      <label for="street_number">Street number:</label>
      <input type="text" id="street_number" name="street_number"  value="<?php echo $_SESSION['street_number'];
    ?>" />
      <br />
      <label for="street_name">Street name:</label>
      <input type="text" id="street_name" name="street_name"  value="<?php echo $_SESSION['street_name'];
    ?>" />
      <br />
      <label for="street_name">Suburb:</label>
      <input type="text" id="suburb" name="suburb"  value="<?php echo $_SESSION['suburb'];
    ?>" />
      <br />
      <label for="city">City:</label>
      <select name="city">
        <option <?php if($_SESSION["city"]=="Wellington")
        {
            echo "selected=\"selected\"";
        }
        ?>>Wellington</option>
        <option <?php if($_SESSION["city"]=="Palmerston North")
        {
            echo "selected=\"selected\"";
        }
        ?>>Palmerston North</option>
      </select>
      <br />
      <label for="city">Email address:</label>
      <input type="text" id="email_address" name="email_address" value="<?php echo $_SESSION['email_address'];
    ?>" />
      <br />
      <p class="explanation">And now your items...</p>
      <ol>
        <?php
    if($_SESSION['items_submitted'] !== "yes")
    {
        $item_offset = 5;
    }
    else
    {
        $item_offset = $_SESSION['item_offset'];
    }
    for($i = 1;
    $i <= $item_offset;
    $i++)
    {

$itemspre = $_SESSION['items'];
$items = explode("|", $itemspre);

foreach ($items as $item) {

    $itemsdisplay = "<li><input type=\"text\" id=\"items[]\" name=\"items[]\" value=\"" . $item . "\" /></li>";
	echo "$itemsdisplay";

	}

}
?>
  </ol>
  <p>You can add some more items at $25 per item:</p>
  <input type="hidden" id="item_offset" name="item_offset" value="<?php echo "$item_offset";
?>">
  <input type="text" id="addnumber" name="addnumber" size="2" />
  <input type="submit" value="Add" id="Add" name="Add" />
  <br />
  <p class="explanation">When would you like us to pick it up?</p>
  <p><-- calendar --></p>
  <input type="submit" value="Submit order" id="submit" name="submit" />
</div>
  </form>
</div>
<?php include("inc/footer.php");
?>

<?php
/* Start a new session for confirmation and error purposes */
session_start();
$_SESSION['message'] = '';
$_SESSION['msg'] = '';
$_SESSION['item_offset'] = '';
$_SESSION['items_submitted'] = "no";
error_reporting(E_ALL);

$first_name = stripslashes(trim($_POST["first_name"]));
$last_name = stripslashes(trim($_POST["last_name"]));
$cellphone = stripslashes(trim($_POST["cellphone"]));
$street_number = stripslashes(trim($_POST["street_number"]));
$street_name = stripslashes(trim($_POST["street_name"]));
$suburb = stripslashes(trim($_POST["suburb"]));
$city = stripslashes(trim($_POST["city"]));
$email_address = stripslashes(trim($_POST["email_address"]));
$itemspre = $_POST['items'];
$items = implode("|", $itemspre);
$item_offset = stripslashes(trim($_POST["item_offset"]));
$addnumber = stripslashes(trim($_POST["addnumber"]));


$_SESSION['first_name'] = $first_name;
$_SESSION['last_name'] = $last_name;
$_SESSION['cellphone'] = $cellphone;
$_SESSION['street_number'] = $street_number;
$_SESSION['street_name'] = $street_number;
$_SESSION['suburb'] = $suburb;
$_SESSION['city'] = $city;
$_SESSION['email_address'] = $email_address;
$_SESSION['items'] = $items;

$error="no";

$okay = preg_match(
'/^[A-z0-9_\-]+[@][A-z0-9_\-]+([.][A-z0-9_\-]+)+[A-z]
{
    2,4
}
$/',
$email_address
);
if ($okay)
{
    $valid = TRUE;
}
else
{
    $valid = FALSE;
}
if($first_name=='')
{
    $message = "<li>First name</li>";
    $error = "yes";
}
if($last_name=='')
{
    $message .= "<li>Last name</li>";
    $error = "yes";
}
if($cellphone=='')
{
    $message .= "<li>Cellphone</li>";
    $error = "yes";
}
if($street_number=='')
{
    $message .= "<li>"."Street number</li>";
    $error = "yes";
}
if($street_name=='')
{
    $message .= "<li>Street name</li>";
    $error = "yes";
}
if($suburb=='')
{
    $message .= "<li>Suburb</li>";
    $error = "yes";
}
if($items=='')
{
    $message .= "<li>"."Items</li>";
    $error = "yes";
}
if($email_address=='')
{
    $message .= "<li>Email address</li>";
    $error = "yes";
}
elseif(!$valid)
{
    $message .= "<li>Valid email address</li>";
    $error = "yes";
}
if($error=="yes")
{
    $_SESSION['message'] = $message;
    $_SESSION['msg'] = "error";
    header("Location: order.php?msg=error");
}
elseif($error=="no")
{
    /* submit */
}

if(isset($_POST["Add"]))
{
$_SESSION['items_submitted'] = "yes";
    $_SESSION['item_offset'] = $item_offset + $addnumber;
    header("Location: order.php");
}
?>