$arr=array(
                        array('name' => 'aa','id' => '456'),                        array('name' => 'bb','id' => '25',),                        array('name' => 'cc','id' => '25',),                        array('name' => 'dd','id' => '456',),
                    );
怎么取出ID相同的name.提示出来。比如这个数组提示 aa 和 dd的id相同 ,bb 和 cc 的id相同

解决方案 »

  1.   

    $arr=array(
                            array('name' => 'aa','id' => '456'),
                            array('name' => 'bb','id' => '25',),
                            array('name' => 'cc','id' => '25',),
                            array('name' => 'dd','id' => '456',),
                        );
    $ar = array();
    foreach($arr as $v) $ar[$v['id']][] = $v['name'];
    foreach($ar as $k => $v) if (count($v) > 1) echo $k.'=>'.join(',', $v).'<br />';
      

  2.   

    自己搞定了~!~                                $newArr=array();
                                    foreach($deals_info as $key=>$value){
                                        if(!isset($newArr[$value['id']])){
                                               $newArr[$value['id']][]=$value['name'];
                                        }else{
                                            foreach($newArr as $k=>$v){
                                                if($k==$value['id'] and !in_array($value['name'],$newArr[$k])){
                                                        $newArr[$k][]=$value['name'];
                                                }
                                            }
                                        }
                                    }