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POManipulating arrays in php
 

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    <p>I have an file uploading site, it has an option of uploading through urls, what I am trying to do is whenever a user uploads through url, I check my database if a file exists that was uploaded through same url it displays the download url directly instead of uploading it again.</p> <p>The data sent to uploading script is in array form like:</p> <pre><code>Array ( [0] =&gt; http://i41.tinypic.com/3342r93.jpg [1] =&gt; http://i41.tinypic.com/28cfub7.jpg [2] =&gt; http://i41.tinypic.com/12dsa32.jpg ) </code></pre> <p>and the array used for outputing the results is in form like this:</p> <pre><code>Array ( [0] =&gt; Array ( [id] =&gt; 43 [name] =&gt; 3342r93.jpg [size] =&gt; 362750 [descr] =&gt; [password] =&gt; [delete_id] =&gt; 75CE [upload_id] =&gt; 75F45CAE1 ) [1] =&gt; Array ( [id] =&gt; 44 [name] =&gt; 28cfub7.jpg [size] =&gt; 105544 [descr] =&gt; [password] =&gt; [delete_id] =&gt; D392 [upload_id] =&gt; 6676FD881 ) [2] =&gt; Array ( [id] =&gt; 45 [name] =&gt; 12dsa32.jpg [size] =&gt; 49000 [descr] =&gt; [password] =&gt; [delete_id] =&gt; 54C9 [upload_id] =&gt; A58614C01 ) ) </code></pre> <p>Now I want is that if the link <a href="http://i41.tinypic.com/28cfub7.jpg" rel="nofollow noreferrer">http://i41.tinypic.com/28cfub7.jpg</a> is already upload I just add it to output array but maintain it in a order (if the link added was 2nd in array the output result should also show it in 2nd) </p> <p>So what function should be used to remove the matched urls from input array and a function to add it output array in the order no.</p> <p><strong>// edited</strong></p> <p>Yes unset will do the thing but I want to maintain the order:</p> <p>For example after unsetting the array looks like this:</p> <pre><code> Array ( [0] =&gt; http://i41.tinypic.com/3342r93.jpg // [1] was removed [2] =&gt; http://i41.tinypic.com/12dsa32.jpg ) </code></pre> <p>but the output array would be </p> <pre><code> Array ( [0] =&gt; Array ( [id] =&gt; 43 [name] =&gt; 3342r93.jpg [size] =&gt; 362750 [descr] =&gt; [password] =&gt; [delete_id] =&gt; 75CE [upload_id] =&gt; 75F45CAE1 ) // this will become [1], so how can i add another output[1] and shift other // items after it to [2], [3] and so on... [1] =&gt; Array ( [id] =&gt; 45 [name] =&gt; 12dsa32.jpg [size] =&gt; 49000 [descr] =&gt; [password] =&gt; [delete_id] =&gt; 54C9 [upload_id] =&gt; A58614C01 ) ) </code></pre>
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