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POForeach through array, do some calculations within the array, then create new array and merge back into original
 

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  1. POForeach through array, do some calculations within the array, then create new array and merge back into original
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    <p>Having some difficulty trying to do this. I'm fetching an array of all submissions, and they are being returned in an array like this:</p> <pre><code>Array ( [0] =&gt; Array ( [Submission] =&gt; Array ( [user_id] =&gt; 2 [title] =&gt; This is a test, only a test [source] =&gt; http://www.testing.com [slug] =&gt; this-is-a-test-only-a-test [category] =&gt; misc [created] =&gt; 2012-10-05 03:43:11 [id] =&gt; 110 ) [SubmissionsVote] =&gt; Array ( [0] =&gt; Array ( [id] =&gt; 336 [user_id] =&gt; 2 [submission_id] =&gt; 110 [vote_type] =&gt; up ) ) ( [1] =&gt; Array ( [id] =&gt; 337 [user_id] =&gt; 4 [submission_id] =&gt; 110 [vote_type] =&gt; down ) ) ) ) </code></pre> <p>My intent is to loop through that returned array, and grab all the SubmissionsVote by <code>vote_type</code> == <code>up</code> and <code>vote_type</code> == <code>down</code>. </p> <p>I then want to calculate a score (this example would return a score of <code>0</code> which is just: <code>up</code> - <code>down</code>. With that, I want to put that score into an array and append it to the end of the original one so it'd look like:</p> <pre><code>Array ( [0] =&gt; Array ( [Submission] =&gt; Array ( [user_id] =&gt; 2 [title] =&gt; This is a test, only a test [source] =&gt; http://www.testing.com [slug] =&gt; this-is-a-test-only-a-test [category] =&gt; misc [created] =&gt; 2012-10-05 03:43:11 [id] =&gt; 110 ) [SubmissionsVote] =&gt; Array ( [0] =&gt; Array ( [id] =&gt; 336 [user_id] =&gt; 2 [submission_id] =&gt; 110 [vote_type] =&gt; up ) ) ( [1] =&gt; Array ( [id] =&gt; 337 [user_id] =&gt; 4 [submission_id] =&gt; 110 [vote_type] =&gt; down ) ) [SubmissionScore] =&gt; Array ( [0] =&gt; 0 ) ) ) </code></pre> <p>Here is what I am doing unsuccessfully:</p> <pre><code> $votes = array(); $totalScore = array(); foreach ($submissions as $submission) { $vote = $submission['SubmissionsVote']; array_push($votes, $vote); } for ($i = 0; $i &lt; count($votes); $i++) { $downVotes = 0; $upVotes = 0; if ($votes[$i]['vote_type'] == 'down') { $downVotes += 1; } else if ($votes[$i]['vote_type'] == 'up') { $upVotes += 1; } $score = $upVotes - $downVotes; $totalScore = array_push($totalScore, $score); } </code></pre> <p>Would love to get a little push in the right direction here.</p>
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    1. USbob_cobb
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    1. COIf you only want to push one element don't use `array_push()` but the `[]` syntax
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      1. USSatevis
    2. CO@Satevis thanks did not know that before :)
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      1. USbob_cobb
 

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