php - 在循环 foreach 中内爆数组，但结果是双 php

Question

我想根据上面项目的代码从数组中获取数据。但是我制作的数组实际上产生了双重结果。我只能适合的数据数组是项目

$query       = "SELECT IDBRG,Disc FROM $RTL.tmasterbarang1 WHERE IDBRG IN (1167646,1170635,1170634)";
 // echo  $query;
 $result = mysqli_query($connect, $query);
while($row  = mysqli_fetch_array($result))
{

$a      = $row['IDBRG'];
$b      = $row['Disc'];
$arr1   = str_split($b);

foreach($arr1 as $x=>$x_value)
{
  echo "<br>";

  $queryz   = "SELECT CAT_DISC_NBR FROM $RTL.cat_disc_test WHERE FLR_NBR = 1 AND CAT_DISC_CD = '".$x_value."' ";
  // echo $queryz;
  $resultz  = mysqli_query($connect, $queryz);
  $rowz     = mysqli_fetch_array($resultz);
  $elements[] = $rowz['CAT_DISC_NBR'];

}
  echo $all =  implode(',', $elements);
}


result of print_r($arr1)."<br>";

1. Array ( [0] => Y [1] => 4 [2] => S [3] => V ) 
2. Array ( [0] => Y [1] => 4 [2] => S [3] => V )  
3. Array ( [0] => Y [1] => G [2] => 3 ) 

// and the each of array have value  Y=69, 4=39, S=66, V=66, G=51, 3=38

echo $all =  implode(',', $elements);
69,39,63,66
69,39,63,66,69,39,63,66
69,39,63,66,69,39,63,66,69,51,38

// i want it should be
69,39,63,66
69,39,63,66
69,51,38

Answer 1

当你添加数据时

$elements[] = $rowz['CAT_DISC_NBR'];

这只是继续添加数据，$elements 数组永远不会被清除，因此下一个循环将继续向上一个循环的结果添加数据。

你需要像...

$a      = $row['IDBRG'];
$b      = $row['Disc'];
$arr1   = str_split($b);
$elements = [];    // Reset list