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Alex Rivera
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How can I sort an array with all children after their respective parents? I guess I'm trying to store a tree inside a one-dimensional array. I have tried to figure this out using usort, but I don't think it is the right tool for the job. Example input array: array (0 => array ( 'id' => '1', 'parent' => '0', ), 1 => array ( 'id' => '2', 'parent' => '1', ), 2 => array ( 'id' => '3', 'parent' => '0', ), 3 => array ( 'id' => '5', 'parent' => '0', ), 4 => array ( 'id' => '17', 'parent' => '3', ), 5 => array ( 'id' => '31', 'parent' => '2', ), 6 => array ( 'id' => '32', 'parent' => '2', )) Example output:
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