php二维数组去重

$goodinfo = array(8) {
  [0]=>
  array(1) {
    ["tcate"]=>
    string(4) "2008"
  }
  [1]=>
  array(1) {
    ["tcate"]=>
    string(4) "2035"
  }
  [2]=>
  array(1) {
    ["tcate"]=>
    string(4) "2024"
  }
  [3]=>
  array(1) {
    ["tcate"]=>
    string(4) "2010"
  }
  [4]=>
  array(1) {
    ["tcate"]=>
    string(4) "2008"
  }
  [5]=>
  array(1) {
    ["tcate"]=>
    string(4) "2010"
  }
  [6]=>
  array(1) {
    ["tcate"]=>
    string(4) "2010"
  }
  [7]=>
  array(1) {
    ["tcate"]=>
    string(4) "2025"
  }
}

去除数组中tcate重复的值
方法有二
方法一
    function arr($goodinfo)
{
   foreach($goodinfo as $k=>$v)
   {
      if($goodinfo[0][‘tcate‘] == $v[‘tcate‘] && $k!=0){
           unset($list[$k]);
           arr($goodinfo);
      }
   }
   
   return $goodinfo;
}

array(5) {
  [0]=>
  array(1) {
    ["tcate"]=>
    string(4) "2008"
  }
  [1]=>
  array(1) {
    ["tcate"]=>
    string(4) "2035"
  }
  [2]=>
  array(1) {
    ["tcate"]=>
    string(4) "2024"
  }
  [3]=>
  array(1) {
    ["tcate"]=>
    string(4) "2010"
  }
  [7]=>
  array(1) {
    ["tcate"]=>
    string(4) "2025"
  }
}

方法二:
 for($i=0;$icount($goodinfo)-1;$i++)
                {
                        $source = $goodinfo[$i];
                        foreach($goodinfo as $k=>$v)
                    {
                        if($source[‘tcate‘] == $v[‘tcate‘] && $k != $i)
                        {
                             unset($goodinfo[$k]);
                        }
                    }
              }