数组输出重复

Question

我有以下从PHP中的POST操作中获得的Array：

Array ( 
    [level-1] => 3 
    [quarter-1] => 1 
    [year-1] => 2014 
    [level-2] => 4 
    [quarter-2] => 2 
    [year-2] => 2014 
    [level-53] => 2 
    [quarter-53] => 1 
    [year-53] => 2013 
    [level-58] => 3 
    [quarter-58] => 2 
    [year-58] => 2014 
    [action] => store 
    [submit_values] => Store 
) 

我执行以下操作以从数组中获取值：

        $array=$_POST;
        foreach(array_chunk($array,3,true) as $val){
            foreach($val as $k=>$v){
               if(strpos($k, "level") !== false){
                 $temp    = explode("-",$k);
                 $id      = $temp[1];
                 $level   = $v;
                 }
             if(strpos($k, "quarter") !== false){
                 $quarter = $v;
             }
             if(strpos($k, "year") !== false){
                $year    = $v;
                }
            }
          echo "ID ".$id." Level ".$level." Quarter ".$quarter." Year ".$year;
          echo "<br>";
        }

但我得到的是：

ID 1 Level 3 Quarter 1 Year 2014
ID 2 Level 4 Quarter 2 Year 2014
ID 53 Level 2 Quarter 1 Year 2013
ID 58 Level 3 Quarter 2 Year 2014
ID 58 Level 3 Quarter 2 Year 2014

最后一行重复！我在代码中做错了什么吗？

Answer 1

试试这个：

$array = $_POST;
unset($array['submit_values']);
unset($array['action']); //...

Answer 2

您不使用action和submit_values检查最后一个循环，因此它返回上次保存的值

$array=$_POST;
    foreach(array_chunk($array,3,true) as $val){
        foreach($val as $k=>$v){
           if(strpos($k, "level") !== false){
             $temp    = explode("-",$k);
             $id      = $temp[1];
             $level   = $v;
             }
         elseif(strpos($k, "quarter") !== false){
             $quarter = $v;
         }
         elseif(strpos($k, "year") !== false){
            $year    = $v;
         }
         // if not one of ifs works
         else continue;
        }
      echo "ID ".$id." Level ".$level." Quarter ".$quarter." Year ".$year;
      echo "<br>";
    }

在循环后重置数值也总是更好：

foreach(array_chunk($array,3,true) as $val){
    $id = '';
    $level = '';
    $quarter = '';
    $year = '';

Answer 3

当循环执行 = > store和submit_values =>时，控件不会进入任何if语句，因此在最后两个循环期间，它会打印先前设置的值

，即ID 58 Level 3 Quarter 2 Year 2014

解决方案：

尝试在foreach循环结束时重新初始化ID、Level、Quarter和Year to “”(空值)。