Question

我尝试在上传表格中添加一个字段，以便能够以一种形式上传3张图片。我遇到的问题是两个图像必须在第三个图像的DB中保存不同的路径。例如image_1和image_2保存到http://example.com/img/，第三张图像保存到../images/

目前，当我在数据库中填写所有3张图片的字段时，我已为他们保存了此名称 - 4649d81924f1b17db1444d72ee271f6c-Array

这是html表单

<form role="form" action="" method="post" enctype="multipart/form-data">
        <!-- File Button --> 
        <div class="form-group">
          <label for="image">image</label>
            <input value="<?php echo !empty($image)?$image:'';?>" id="image" name="file[]" multiple="multiple" class="input-file" type="file">
        </div>

        <!-- File Button --> 
        <div class="form-group">
          <label for="rest_img_big">Image 2</label>
            <input value="<?php echo !empty($rest_img_big)?$rest_img_big:'';?>" id="rest_img_big" name="file[]" multiple="multiple" class="input-file" type="file">
        </div>

        <!-- File Button --> 
        <div class="form-group">
          <label for="web_image">Image 3</label>
            <input value="<?php echo !empty($web_image)?$web_image:'';?>" id="web_image" name="file[]" multiple="multiple" class="input-file" type="file">
        </div>
</form>

这是图片上传的php部分

if ( !empty($_POST) && isSet($_POST['submit'])) 
{
      define('MAX_FILE_SIZE', 20000000430);
      $permitted = array('image/jpeg', 'image/jpeg', 'image/png', 'image/gif');

      // keep track post values       

      $fileName  = $_FILES['file']['name'];
      $tmpName   = $_FILES['file']['tmp_name'];
      $fileSize  = $_FILES['file']['size'];
      $fileType  = $_FILES['file']['type'];                                    

      // make a new image name
      $ext = substr(strrchr($fileName, "."), 1);
      // generate the random file name
      $randName = md5(rand() * time()) . '-' .$fileName;

      // save image path
      $path = "../../img/".$randName;
      $forDB = "http://example/img/".$randName;
      if (in_array($fileType, $permitted)) 
      {
          $result = move_uploaded_file($tmpName, $path);
          if (!$result) 
          {
                echo "Error uploading image file";
                exit;
          } 
       } 

        // update data
        $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

        $sql = "UPDATE images set image = ?, rest_img_big = ?, web_image = ? WHERE user_id = ?";
        $q = $pdo->prepare($sql);
        $q->execute(array($forDB,$forDB,$path,$user_id));

所以有任何建议我如何解决这个问题并能同时上传3张图片？

更新：当前代码

if ( !empty($_POST) && isSet($_POST['submit'])) 
{
     define('MAX_FILE_SIZE', 20000000430);
     $permitted = array('image/jpeg', 'image/jpeg', 'image/png', 'image/gif');

     // keep track post values
     for($i=0; $i < count($_FILES['file']['name']); $i++){
        $fileName  = $i.$_FILES['file']['name'][$i]; //get unique name
        $tmpName   = $_FILES['file']['tmp_name'][$i];
        $fileSize  = $_FILES['file']['size'][$i];
        $fileType  = $_FILES['file']['type'][$i];                                      

        // make a new image name
        $ext = substr(strrchr($fileName, "."), 1);
        // generate the random file name
        $randName = md5(rand() * time()) . '-' .$fileName;

        // save image path
        $web = "../../img/".$randName;
        $smallImageForApp = "http://example/img/".$randName;
        $bigImageForApp = "http://example/img/".$randName;
        if (in_array($fileType, $permitted)) 
        {
            $result = move_uploaded_file($tmpName, $web);
            if (!$result) 
            {
                echo "Error uploading image file";
                exit;
            } 
        } 
        else {                  
            // update data
            $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
            $sql = "UPDATE images set image = ?, rest_img_big = ?, web_image = ? WHERE user_id = ?";
            $q = $pdo->prepare($sql);
            $q->execute(array($smallImageForApp,$bigImageForApp,$web,$user_id));
        }

更新2：var_dump（$ _ FILES）;

array(1) { 
   ["file"]=> array(5) 
   { 
   ["name"]=> array(3) 
   { 
       [0]=> string(21) "23.jpg_1418028921.jpg" 
       [1]=> string(15) "_1418028891.jpg" 
       [2]=> string(6) "78.jpg" 
   } 
   ["type"]=> array(3) 
   { 
       [0]=> string(10) "image/jpeg" 
       [1]=> string(10) "image/jpeg" 
       [2]=> string(10) "image/jpeg" 
   } 
   ["tmp_name"]=> array(3) 
   { 
       [0]=> string(14) "/tmp/phpfqqJG3" 
       [1]=> string(14) "/tmp/phptp9zcF" 
       [2]=> string(14) "/tmp/phpTkmuIg" 
   } 
   ["error"]=> array(3) 
   { 
       [0]=> int(0) 
       [1]=> int(0) 
       [2]=> int(0) 
   } 
   ["size"]=> array(3) 
   { 
       [0]=> int(25878) 
       [1]=> int(25878) 
       [2]=> int(35864) 
   } 
 } 
} 
 array(1) 
 { 
   //same thing 3 times
 }

Answer 1

您当前的代码只会上传单张图片，而您需要循环播放$_FILES['file']并上传它，以下是一种方法

for($i=0; $i < count($_FILES['file']['name']); $i++){
  $fileName  = $i.$_FILES['file']['name'][$i]; //get unique name
  $tmpName   = $_FILES['file']['tmp_name'][$i];
  $fileSize  = $_FILES['file']['size'][$i];
  $fileType  = $_FILES['file']['type'][$i];  

  // make a new image name
  $ext = substr(strrchr($fileName, "."), 1);
  // generate the random file name
  $randName = md5(rand() * time()) . '-' .$fileName;

  // save image path
  //check if its 3rd image change the path to '../images/' folder
  $path = ($ === 2) ? '../images/' : "../../img/".$randName;
  $forDB = "http://example/img/".$randName;
  if (in_array($fileType, $permitted)) 
  {
      $result = move_uploaded_file($tmpName, $path);
      if (!$result) 
      {
            echo "Error uploading image file";
            exit;
      } else {
    // update data in db here, only on upload
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $sql = "UPDATE images set image = ?, rest_img_big = ?, web_image = ? WHERE user_id = ?";
    $q = $pdo->prepare($sql);
    $q->execute(array($forDB,$forDB,$path,$user_id));
      }
   } 

}

您的$fileName混乱4649d81924f1b17db1444d72ee271f6c-Array，因为您要将array附加到字符串，最后Array显示

注意：不要在db $forDB = "http://example/img/".$randName;中存储图片的完整网址，您应该只存储名称$forDB = $randName;，以便您可以从域名移动应用程序到域，但图像不会破碎。

Answer 2

您需要通过循环逐个上传文件

for($i=0; $i < count($_FILES['file']['name']); $i++){
      $fileName  = $_FILES['file']['name'][$i];
      $tmpName   = $_FILES['file']['tmp_name'][$i];
      $fileSize  = $_FILES['file']['size'][$i];
      $fileType  = $_FILES['file']['type'][$i];  

     // more stuff . . . . . .
}

多个上传图像格式不保存图像的正确名称

2 个答案: