使用CodeIgniter和Ajax在多个输入字段中输入多个文件

Question

我无法在codeigniter文件夹中上传多个图像。我用这个参考文献Multiple image upload。有人请帮助我。至少这篇参考文章的作者请帮我解决这个问题。这里是我的代码

查看

<input type="file" name="images[]" class="file_input" multiple /> 
<input type="file" name="images[]" class="file_input" multiple /> 
<input type="file" name="images[]" class="file_input" multiple /> 
<input type="file" name="images[]" class="file_input" multiple /> 

脚本

$(document).ready(function(){ 
$('#save').on('click', function(){ 
    var fileInputs = $('.file_input'); 
    var formData = new FormData(); 
    $.each(fileInputs, function(i,fileInput){ 
     if(fileInput.files.length > 0){ 
      $.each(fileInput.files, function(k,file){ 
       formData.append('images[]', file); 
      }); 
     } 
    }); 
    $.ajax({ 
     url: '<?php echo base_url(); ?>exerciseset/process', 
        dataType: 'json', 
        contentType: false, 
        processData: false, 
        data: formData, 
        method: 'post', 

     success: function(response){ 
      console.log(response); 
     } 
    }); 
}); 
}); 

控制器

public function process() 
{ 
$fileuploadurl = base_url() . "study_set/"; 
    $config['upload_path'] = 'study_set/'; 
    $config['allowed_types'] = 'gif|jpg|png|jpeg|bmp|mp3|mp4'; 
    $config['max_filename'] = '255'; 
    $config['encrypt_name'] = FALSE; 
    $config['max_size'] = '25000000'; 
$F = array(); 

$count_uploaded_files = count($_FILES['images']['name']); 

$files = $_FILES; 
for($i = 0; $i < $count_uploaded_files; $i++) 
{ 
    $_FILES['userfile'] = [$files['images']['name'][$i]]; 

    $F[] = $_FILES['userfile']; 

    // Here is where you do your CodeIgniter upload ... 
$this->load->library('upload', $config); 
       $this->upload->data($_FILES['userfile']); 
       if (!$this->upload->data('images')) { 
        echo $this->upload->display_errors(); 
       } 
} 

echo json_encode($F); 
} 

它返回IMA ges命名为数组，但无法将其上载到文件夹中。而且我还需要每个图像名称在单独的变量中。请帮我，我很着急。

Answer 1

在你的代码中，似乎你错过了上传文件。因此它不会移动到特定的文件夹。请检查下面，希望它会帮助你。

public function process() 
{ 
    $fileuploadurl = base_url() . "study_set/"; 
    $config['upload_path'] = APPPATH . 'uploads/study_set/'; 
    $config['allowed_types'] = 'gif|jpg|png|jpeg|bmp|mp3|mp4'; 
    $config['max_filename'] = '255'; 
    $config['encrypt_name'] = FALSE; 
    $config['max_size'] = '25000000'; 
    $F = array(); 

    $count_uploaded_files = count($_FILES['images']); 
    $result = array(); 
    for($i = 0; $i < $count_uploaded_files; $i++) 
    { 
     $_FILES["file"]["name"] = $_FILES["images"]["name"][$i]; 
     $_FILES["file"]["type"] = $_FILES["images"]["type"][$i]; 
     $_FILES["file"]["tmp_name"] = $_FILES["images"]["tmp_name"][$i]; 
     $_FILES["file"]["error"] = $_FILES["images"]["error"][$i]; 
     $_FILES["file"]["size"] = $_FILES["images"]["size"][$i]; 
     $this->load->library('upload', $config); 
     if (!$this->upload->do_upload('file')) { 
      $result['errors'][] = $this->upload->display_errors(); 
     }else{ 
      $result['success'][] = $this->upload->data(); 
     } 
    } 
    echo json_encode($result); 
} 

请确保您指定了正确的文件夹路径并且文件夹有足够的权限来写入文件。

让我知道它是否无效。