下面一起来了解下保持数组$array键值由大到小排序,相信大家看完肯定会受益匪浅,文字在精不在多,希望保持数组$array键值由大到小排序这篇短内容是你想要的。
需求:要求保持数组$array键值由大到小,并且其中相同键值的键名要从小到大排序
实现代码如下:
<? header("Content-type: text/html; charset=UTF-8"); echo '需求:要求保持数组$array键值由大到小,并且其中相同键值的键名要从小到大排序'; echo '<pre />'; $array = array( '5' => 100, '3' => 80, '1' => 80, '4' => 60, '0' => 60, '2' => 40 ); $kArr=array(); $vArr=array(); $newkArr=array(); foreach($array as $key=>$value){ $kArr[]=$key; $vArr[]=$value; } $kStr=implode(",",$kArr); $repeatArr=array(); foreach($array as $k=>$v){ $arrn[$v][]=$k; } foreach($arrn as $k=>$v){ if(count($v)>1){ //echo $k.'重复下标为'; $aa=''; foreach($v as $vv){ $aa .= $vv.','; } $bb=substr($aa, 0, -1); $bbarr=explode(',',$bb); sort($bbarr); $bbstr=implode(',',$bbarr); $repeatArr[$bb] = $bbstr; } } foreach($repeatArr as $key=>$value){ $kStr=str_replace($key,$value,$kStr); } $newkArr=explode(',',$kStr); echo '<hr />'; $c=array_combine($newkArr,$vArr); print_r($c);
今天有个高手帮写了个方法:一起膜拜下
function sysSortArray($ArrayData,$KeyName1,$SortOrder1 = "SORT_ASC",$SortType1 = "SORT_REGULAR"){ if(!is_array($ArrayData)){ return $ArrayData; } // Get args number. $ArgCount = func_num_args(); // Get keys to sort by and put them to SortRule array. for($I = 1;$I < $ArgCount;$I ++){ $Arg = func_get_arg($I); if(!eregi("SORT",$Arg)){ $KeyNameList[] = $Arg; $SortRule[] = '$'.$Arg; } else{ $SortRule[] = $Arg; } } // Get the values according to the keys and put them to array. foreach($ArrayData AS $Key => $Info){ foreach($KeyNameList AS $KeyName){ ${$KeyName}[$Key] = $Info[$KeyName]; } } // Create the eval string and eval it. $EvalString = 'array_multisort('.join(",",$SortRule).',$ArrayData);'; eval ($EvalString); return $ArrayData; } $data = array('0'=>60,'1'=>80,'2'=>40,'3'=>80,'4'=>60,'5'=>100); $sorts=array(); foreach($data as $k => $val){ $sorts[$k]['k']=$k; $sorts[$k]['val']=$val; } $rs=sysSortArray($sorts,'val',"SORT_DESC","k","SORT_DESC"); print_r($rs);die;
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