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  1. PO
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    <pre><code>&lt;?php /** * @author Prasath A.R * @copyright 2012 * @Date 2012-8-31 17:14 */ $array = array (0 =&gt; array ( 'id' =&gt; '1', 'parent' =&gt; '0', ), 1 =&gt; array ( 'id' =&gt; '2', 'parent' =&gt; '1', ), 2 =&gt; array ( 'id' =&gt; '3', 'parent' =&gt; '0', ), 3 =&gt; array ( 'id' =&gt; '5', 'parent' =&gt; '0', ), 4 =&gt; array ( 'id' =&gt; '17', 'parent' =&gt; '3', ), 5 =&gt; array ( 'id' =&gt; '31', 'parent' =&gt; '2', ), 6 =&gt; array ( 'id' =&gt; '32', 'parent' =&gt; '2', )); print_r($array); echo "&lt;br /&gt;"; for($i=0;$i&lt;count($array);$i++) { for($j=$i;$j&lt;count($array);$j++) { if($array[$i]['parent']&gt;$array[$j]['parent']) { $temp=$array[$i]; $array[$i]=$array[$j]; $array[$j]=$temp; } } } echo "&lt;h2&gt;After Sorting&lt;/h2&gt;&lt;br /&gt;"; print_r($array); ?&gt; </code></pre> <p>The Answer will be:</p> <p>Array ( [0] => Array ( [id] => 1 [parent] => 0 )</p> <pre><code>[1] =&gt; Array ( [id] =&gt; 2 [parent] =&gt; 1 ) [2] =&gt; Array ( [id] =&gt; 3 [parent] =&gt; 0 ) [3] =&gt; Array ( [id] =&gt; 5 [parent] =&gt; 0 ) [4] =&gt; Array ( [id] =&gt; 17 [parent] =&gt; 3 ) [5] =&gt; Array ( [id] =&gt; 31 [parent] =&gt; 2 ) [6] =&gt; Array ( [id] =&gt; 32 [parent] =&gt; 2 ) </code></pre> <p>)</p> <p>After Sorting</p> <p>Array ( [0] => Array ( [id] => 1 [parent] => 0 )</p> <pre><code>[1] =&gt; Array ( [id] =&gt; 3 [parent] =&gt; 0 ) [2] =&gt; Array ( [id] =&gt; 5 [parent] =&gt; 0 ) [3] =&gt; Array ( [id] =&gt; 2 [parent] =&gt; 1 ) [4] =&gt; Array ( [id] =&gt; 31 [parent] =&gt; 2 ) [5] =&gt; Array ( [id] =&gt; 32 [parent] =&gt; 2 ) [6] =&gt; Array ( [id] =&gt; 17 [parent] =&gt; 3 ) </code></pre> <p>)</p>
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    1. This table or related slice is empty.
    1. POSorting array depending on parent; a tree in a one-dimensional array
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    1. This table or related slice is empty.
    1. USPrasath Albert
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
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      1. This table or related slice is empty.
      1. VTDownMod
    1. COThis does not match the question. Your result array is not equal to the one in the question.
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      1. USEmil Vikström
    2. CO@Emil Vikström : Actually the Results Matched, we need to shift the 0 key array to the last element of the array
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      1. USPrasath Albert
 

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