Php foreach元素存储在单个数组中

我的foreach元素每次提供三个变量

如何将其存储为多维数组

我存储数组的代码是

foreach($parts as $part){
     $filename = $filename;
     $attachmentid = $attachmentid;
     $filelocation = $filelocation;
     $attachment = [
       'filename' => $filename,
       'attachmnetId' => $attachmentid,
       'filelocation' => $filelocation
     ];
}

我的print\u r$附件只显示最后一个foreach数组

您需要添加[]来创建附件数组

---

您将$attachment作为字符串而不是数组

foreach($parts as $part){
 $filename = $filename;
 $attachmentid = $attachmentid;
 $filelocation = $filelocation;
 $attachment[] = [
   'filename' => $filename,
   'attachmnetId' => $attachmentid,
   'filelocation' => $filelocation
 ];
}

---

foreach后面的前3行看起来很没用。

foreach($parts as $part){
 $filename = $filename;
 $attachmentid = $attachmentid;
 $filelocation = $filelocation;
 $attachment[] = [
   'filename' => $filename,
   'attachmnetId' => $attachmentid,
   'filelocation' => $filelocation
 ];
}