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POArray group and some operations
 

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  1. POArray group and some operations
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    <p>I have db data like:</p> <pre><code>date, storage, bandwidth, cost </code></pre> <p>I can have entries like:</p> <pre><code>2013-10-24, 1, 0, 0.55; 2013-10-25, 1, 0, 0.50; 2013-10-25, 1, 0, 0.25; 2013-10-25, 0, 1, 0.50; </code></pre> <p>I grab the data from db and make a foreach. I will get of course 4 rows. I will need to group data like this:</p> <p>This means that on 2013-10-24 I had storage cost of 0.55 And on 2013-10-25 I had storage cost of 0.75 and bandwidth cost of 0.50</p> <p>I made a function:</p> <pre> public function sortCostByDay($array, $key) { $return = array(); foreach($array as $v) { $storage = $bandwidth = $total = 0; if($v['storage'] == 1) { $storage += $v['cost']; $total += $storage; } if($v['bandwidth'] == 1) { $bandwidth += $v['cost']; $total += $bandwidth; } $return[$v[$key]][] = array('storage' => $storage, 'bandwidth' => $bandwidth, 'total' => $total); } return $return; } </pre> <p>This will group my initial array by $key. The $key is the date.</p> <p>So I end up having this:</p> <pre><code>'2013-10-24' =&gt; array (size=1) 0 =&gt; array (size=3) 'storage' =&gt; 0.55 'bandwidth' =&gt; 0 'total' =&gt; 0.55 '2013-10-25' =&gt; array (size=3) 0 =&gt; array (size=3) 'storage' =&gt; 0.50 'bandwidth' =&gt; 0 'total' =&gt; 0.50 1 =&gt; array (size=3) 'storage' =&gt; 0.25 'bandwidth' =&gt; 0 'total' =&gt; 0.50 2 =&gt; array (size=3) 'storage' =&gt; 0 'bandwidth' =&gt; 0.50 'total' =&gt; 1 </code></pre> <p>I can`t figure out how to make it be something like:</p> <pre><code>'2013-10-24' =&gt; array (size=1) 0 =&gt; array (size=1) 'storage' =&gt; 0.55 'bandwidth' =&gt; 0 'total' =&gt; 0.55 '2013-10-25' =&gt; array (size=1) 0 =&gt; array (size=3) 'storage' =&gt; 0.75 'bandwidth' =&gt; 0.50 'total' =&gt; 1.25 </code></pre> <p>Any thoughts?</p>
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