细胞内的PHP换行删除引用

This is my PHP

$val = "";
foreach($data as $v){
  $val .= '"' . $v . "
" . '"';
}

The result is

//this is inside of cell
sample
"sample
"sample

This is correct but I cant figure out how to remove the double quote in "sample. Only the first value dont have a double quote the rest will have a double quote.

EDIT

This is the result of my code

This is what I want

Somthing like this should do the trick

$i = 0
foreach($data as $v){
  $val .= '"' . $v . "
" . (count($data) !== $i) ? '"' : '';
  $i++;
}

I think you can use the php function trim like this:

$val = "";
foreach($data as $v){
  if( ''==$val) {
      $val .= trim('"' . $v . "
" . '"','"');
  }else{
      $val .= '"' . $v . "
" . '"','"';
  }
}

Just Remove some part of your code, you will get solution:

$val = "";
foreach($data as $v){
  $val .= $v . "
";
}

Just try (Maintaining line break in excel):

    $val = "";
   foreach($data as $v){
          $val .= $v . "<br style='mso-data-placement:same-cell;' />";
        }

 $val .= '"' . $v . "</br>" . '"';
$val=str_replace('"','',$val);

I think this is what you are looking for inside your loop. It will remove every double quote.

Well there you go :

$data = ['sample','sample','sample'];
$val = "";
foreach($data as $v){
  $val .= $v . "
" ;
}

Then you simply use fputcsv() like this :

$fp = fopen('file.csv', 'w');
fputcsv($fp, [$val]);

And you get the result you want :

The answer to my question is

$val = "";
foreach($data as $v){
  $val .= $v . "
";
}

 $val = '"'. $val .'"';

I need to add the '"' outside of the loop.