PHP example: Upload multiple images and verify the code_PHP tutorial

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...