Question

我试图在foreach循环中获取请求数组的最后一个元素，如下所示：

array:5 [▼
  0 => "files/uploads/articles/bear_PNG1183.png"
  1 => "files/uploads/articles/bear_PNG1189.png"
  2 => "files/uploads/articles/bear_PNG1188.png"
  3 => "files/uploads/articles/bear_PNG1182 (1).png"
  4 => "files/uploads/articles/bear_PNG1190.png"
]

但是我不能使用end()函数，因为我得到了：

只应通过引用传递变量

这是foreach函数的样子：

foreach ($request->get('uploadedItems') as $file) {

          //make a new directory for the article and move all the uploaded files to it
          $filePathArr = explode('/', $file);
          $lastItem = array_pop($filePathArr);
          array_push($filePathArr, $article->id, $lastItem);
          $newPath = implode('/', $filePathArr);
          $articleDirectory = $this->destinationPath.'/'.$article->id;

          if(!File::exists($articleDirectory))
            File::makeDirectory($articleDirectory, 0755, true);

          File::move(public_path($file), public_path($newPath));

          if(end($request->get('uploadedItems')) == $file){
              dd($file);
          }

          Media::create(['path' => $newPath, 'article_id' => $article->id]);
        }

Answer 1

为什么多次致电$request->get('uploadedItems')？调用一次并在循环之前将其分配给变量或：

foreach ($files = $request->get('uploadedItems') as $file) {

    if(end($files) == $file){
        dd($file);
    }

}

Php / Laravel - 从请求数组中获取最后一个元素

1 个答案: