sort multidimentional array

Sort multidimentional array

	// To sort multidimentional array
	public function array_msort($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;

	}
	
	Example: 
	$this->array_msort($arrAllFundAllocation['growth_equity'], array('fund_id'=>SORT_ASC));