PHP example: Upload multiple images and verify the code_PHP tutorial

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Release: 2016-07-13 17:29:33
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单张的图片上传是不复杂的,这里涉及到多张图片上传和对图片格式的校验,保证上传的一定是图片,防止上传其他文件到服务器。

基本实现算法是使用数组的形式,把所有的图片提交个一个数组,对数组的元素进行一个个的处理。


                           
                           
                           
                            ";
       } //end if
} // end for
 

// 如果没有选择任何图片
if (empty($result))
{
       prompt_msg("错误信息", "没有选择任何图片。", "返回上一步", "uploadimg.php?action=upload" );
       exit();
}

// Display all uploaded results
echo "

以下为引用的内容:

// 图片目录
$img_dir = "../upload/";
// …… html 显示上传界面

/* 图片上传处理 */
// 把图片传到服务器
// 初始化变量

$uploaded = 0;
$unuploaded = 0;

//只允许五张图片上传

for ($i=0; $i<=5; $i++)
{
//获取当前图片的信息
$is_file = $_FILES[imgfile][name][$i];
//如果当前图片不为空
if (!empty($is_file))
{
//把当前图片的信息存储到变量里
$result[$i] = "

". $_FILES[imgfile][name][$i] ."". round($_FILES[imgfile][size][$i]/1024, 2) ."K". $_FILES[imgfile][type][$i] ."";

              // 判断上传的图片的类型是不是jpg,gif,png,bmp中的一种,同时判断是否上传成功
              if (

                     $_FILES[imgfile][type][$i] == "image/pjpeg"   ||
                     $_FILES[imgfile][type][$i] == "image/gif"     ||
                     $_FILES[imgfile][type][$i] == "image/x-png"   ||
                     $_FILES[imgfile][type][$i] == "image/bmp"
                 )
              {
                     //如果上传的文件没有在服务器上存在
                     if (!file_exists($img_dir . $_FILES[imgfile][name][$i]))
                     {
                            //把图片文件从临时文件夹中转移到我们指定上传的目录中
                            move_uploaded_file($_FILES[imgfile][tmp_name][$i],
      $img_dir . $_FILES[imgfile][name][$i]);
                            $result[$i] .= "成功";
                            $uploaded++;
                     }
                     else         //如果文件已经在服务器上存在
                     {
                            $result[$i] .= "文件已存在";
                            $unuploaded++;
                            continue;
                     }
              }
              else
              {
                     $result[$i] .= "失败";
                     $unuploaded++;
              }
              $result[$i] .= "


                                                                                                                      ;
                                                                                    lt;td>Upload results

“;

foreach( $result as $value)
{

echo $value;

}

echo "



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www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/531674.htmlTechArticleUploading a single image is not complicated. This involves uploading multiple images and verifying the image format. , to ensure that images must be uploaded and to prevent other files from being uploaded to the server. Basic reality...
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