note 100534 added to function.array-multisort

From: Date: Thu, 21 Oct 2010 21:26:26 +0000
Subject: note 100534 added to function.array-multisort
Groups: php.notes 
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I came up with an easy way to sort database-style results. This does what example 3 does, except it takes care of creating those intermediate arrays for you before passing control on to array_multisort(). <?php function array_orderby() { $args = func_get_args(); $data = array_shift($args); foreach ($args as $n => $field) { if (is_string($field)) { $tmp = array(); foreach ($data as $key => $row) $tmp[$key] = $row[$field]; $args[$n] = $tmp; } } $args[] = &$data; call_user_func_array('array_multisort', $args); return array_pop($args); } ?> The sorted array is now in the return value of the function instead of being passed by reference. <?php $data[] = array('volume' => 67, 'edition' => 2); $data[] = array('volume' => 86, 'edition' => 1); $data[] = array('volume' => 85, 'edition' => 6); $data[] = array('volume' => 98, 'edition' => 2); $data[] = array('volume' => 86, 'edition' => 6); $data[] = array('volume' => 67, 'edition' => 7); // Pass the array, followed by the column names and sort flags $sorted = array_orderby($data, 'volume', SORT_DESC, 'edition', SORT_ASC); ?> ---- Server IP: 192.41.42.26 Probable Submitter: 165.230.151.248 ---- Manual Page -- http://www.php.net/manual/en/function.array-multisort.php Edit -- https://master.php.net/note/edit/100534 Del: integrated -- https://master.php.net/note/delete/100534/integrated Del: useless -- https://master.php.net/note/delete/100534/useless Del: bad code -- https://master.php.net/note/delete/100534/bad+code Del: spam -- https://master.php.net/note/delete/100534/spam Del: non-english -- https://master.php.net/note/delete/100534/non-english Del: in docs -- https://master.php.net/note/delete/100534/in+docs Del: other reasons-- https://master.php.net/note/delete/100534 Reject -- https://master.php.net/note/reject/100534 Search -- https://master.php.net/manage/user-notes.php

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