How to process groups of duplicate fields and organize by common field key - PHP / Array
<p>Looking to mimic what's going on on this website where you can add multiple field groups:   When you click "add another card", it duplicates the field -- I've got this covered with jquery and clone().  However, if you input two gift cards with the same amount, on the next step they've combined the quantities for those gift cards into one group.  So here's a scenario that I'm facing and the output that I would like to see:</p>

<p>User Input:</p>

<pre><code>Field Group 1 -- Amount: $100 Quantity: 1
Field Group 2 -- Amount: $75 Quantity: 2
Field Group 3 -- Amount: $100 Quantity: 1
</code></pre>

<p>Desired Output on Next Page:</p>

<pre><code>$100 Gift Card Group: 2
$75 Gift Card Group: 2
</code></pre>

<p>I've been searching for different ways to do this and can't find anything, please help!!</p>
