Possible Duplicate:
Sorting an associative array in PHP
Hello all,
I have an array like
<?php
$data[] = array('id' => 67, 'hits' => 2);
$data[] = array('id' => 86, 'hits' => 1);
$data[] = array('id' => 85, 'hits' => 6);
$data[] = array('id' => 98, 'hits' => 2);
$data[] = array('id' => 89, 'hits' => 6);
$data[] = array('id' => 65, 'hits' => 7);
?>
And I want to sort this array on the basis on hits.
Please suggest some code that help me....
Thanks in advance
You need the usort() function - allows you to specify a custom compare function. See http://php.net/manual/en/function.usort.php.
Your compare function could for example be function cmp($a, $b) { return strcasecmp($a['edition'], $b['edition']); }
Try this:
array_multi_sort($data, array('edition'=>SORT_DESC));
function array_multi_sort($array, $cols)
{
$colarr = array();
foreach($cols as $col => $order)
{
$colarr[$col] = array();
foreach ($array as $k => $row)
{
$colarr[$col]['_'.$k] = strtolower($row[$col]);
}
}
$eval = 'array_multisort(';
foreach($cols as $col => $order)
{
$eval .= '$colarr[\''.$col.'\'],'.$order.',';
}
$eval = substr($eval,0,-1).');';
eval($eval);
$ret = array();
foreach($colarr as $col => $arr)
{
foreach($arr as $k => $v)
{
$k = substr($k,1);
if (!isset($ret[$k])) $ret[$k] = $array[$k];
$ret[$k][$col] = $array[$k][$col];
}
}
return $ret;
}
Resource: http://php.net/manual/en/function.array-multisort.php
