Iterate PHP Array in Form Submission

Question

I have an HTML form that's submitting to a PHP script and send it as an email. The problem I'm having is iterating the array and getting the output formatted into a table correctly.

My input fields look like this:

<input class="form-control" type="text" name="alternate[][qty]" />
<input class="form-control" type="text" name="alternate[][height]" />

I am iterating the array like this:

if ( isset( $_POST['alternate']))
        {
            foreach($_POST['alternate'] as $alt)
            {
                $message .= "<tr><td>" . $alt['qty'] . "</td><td>" . $alt['height'] . "</td></tr>";
            }
        }

I'm getting the correct values from the array but they are not formatted correctly. I am looking for an output something like this:

123 45

but instead it breaks across two rows like this:

enter image description here

How can I get both values on the same line?

EDIT:

Using

    echo '<pre>';
    print_r($_POST['alternate']);
    echo '</pre>';

I get Array ( [0] => Array ( [qty] => 54 )

    [1] => Array
        (
            [height] => 5
        )

    [2] => Array
        (
            [qty] => 34
        )

    [3] => Array
        (
            [height] => 5
        )

    [4] => Array
        (
            [qty] => 36
        )

    [5] => Array
        (
            [height] => 45
        )
    ...
)

which makes it look like I actually have 6 arrays...? That would explain why I'm getting each cell on a separate row, but I still don't understand how to fix it...

So that's what it looks like, but what does the HTML contain? — Mr. Llama
– Mr. Llama, Commented Mar 18, 2015 at 17:35
@Mr.Llama This is the generated HTML <tr><td>123</td><td></td></tr> <tr><td></td><td>45</td></tr> — mack
– mack, Commented Mar 18, 2015 at 17:51

user169600 · Accepted Answer · 2015-03-18 18:34:44Z

1

You're iterating through every element in $_POST['alternate'] and creating a row for each iteration. There are two elements, thus two rows.

There's no need to iterate since you already know which elements you'll get:

if ( isset( $_POST['alternate']))
{
  $message = "<tr><td>{$_POST['alternate']['qty']}</td><td>{$_POST['alternate']['height']}</td></tr>";
}

answered Mar 18, 2015 at 18:34

user169600

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2 Comments

mack Over a year ago

The 'alternates' array contains multiple items, each item has a qty and a height. The final output should show the qty and height for each array item in a single row.

user169600 Over a year ago

If your alternates contains multiple items you'll probably need two foreach then. Do a print_r($_POST['alternate']) to get a hang of the structure of your alternates and see if you can solve it on your own. If not, come back and ask another question.

jvitasek · Accepted Answer · 2015-03-18 20:47:05Z

0

Give this a shot, I hope that's what you're opting for.

if(isset($_POST['alternate']))
{
    $message = "<tr>";
    foreach($_POST['alternate'] as $alt)
    {
        if(isset($alt['qty']))
            $message .= "<td>" . $alt['qty'] . "</td>";
        elseif(isset($alt['height']))
            $message .= "<td>" . $alt['height'] . "</td>";
    }
    $message .= "</tr>";
}

This gave me <tr><td>123</td><td>45</td></tr>.

EDITED SOLUTION

This script actually takes care of <tr> tags inside of the loop.

if(isset($_POST['alternate']))
{
    foreach($_POST['alternate'] as $alt)
    {
        if(isset($alt['qty']))
            $message .= "<tr><td>" . $alt['qty'] . "</td>";
        elseif(isset($alt['height']))
            $message .= "<td>" . $alt['height'] . "</td></tr>";
    }
}

Try it out and let me know.

edited Mar 18, 2015 at 20:47

answered Mar 18, 2015 at 18:18

jvitasek

8108 silver badges17 bronze badges

2 Comments

mack Over a year ago

Thanks @jvitasek, that does give me the values on the same line, the only problem is that the 'alternate' array contains multiple values. If I do not include the <tr> inside of the loop, all the values end up on one huge row.

jvitasek Over a year ago

@mack Do you still need the solution? I can edit it to make it so.

ChristianM · Accepted Answer · 2015-03-18 21:05:26Z

0

Your HTML actually declares separate array entries. You need to group them by defining keys for the array. Something like:

<input class="form-control" type="text" name="alternate[0][qty]" />
<input class="form-control" type="text" name="alternate[0][height]" />

Then the next group of fields uses "1" and so on.

answered Mar 18, 2015 at 21:05

ChristianM

1,82313 silver badges23 bronze badges

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