问题
I am trying to get a multiple upload library working for my Codeigniter based website. I have it working almost but I have a slight problem if I upload more than one image, the file extentions get screwed up; for example, if I upload three JPEGS, I get this in my uploads folder,
image1.jpg
image2.jpg.jpg
image3.jpg.jpg.jpg
I cannot see what is causing it, this is the library in question and I am pretty sure that it is in there that the problem is,
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* This library assumes that you have already loaded the default CI Upload Library seperately
*
* Functions is based upon CI_Upload, Feel free to modify this
* library to function as an extension to CI_Upload
*
* Library modified by: Alvin Mites
* http://www.mitesdesign.com
*
*/
class Multi_upload {
function Multi_upload () {
// $CI =& get_instance();
}
/**
* Perform multiple file uploads
* Based upon JQuery Multiple Upload Class
* see http://www.fyneworks.com/jquery/multiple-file-upload/
*/
function go_upload($field = 'userfile') {
$CI =& get_instance();
// Is $_FILES[$field] set? If not, no reason to continue.
if ( ! isset($_FILES[$field]['name'][0]))
{
$CI->upload->set_error('upload_no_file_selected');
return FALSE;
} else
{
$num_files = count($_FILES[$field]['name']) -1;
$file_list = array();
$error_hold = array();
$error_upload = FALSE;
}
// Is the upload path valid?
if ( ! $CI->upload->validate_upload_path())
{
// errors will already be set by validate_upload_path() so just return FALSE
return FALSE;
}
for ($i=0; $i < $num_files; $i++) {
// $fname = $_FILES[$field]['name'][$i];
// echo "$fname\n\n<br><br>\n\n";
$error_hold[$i] = FALSE;
// Was the file able to be uploaded? If not, determine the reason why.
if ( ! is_uploaded_file($_FILES[$field]['tmp_name'][$i]))
{
$error = ( ! isset($_FILES[$field]['error'][$i])) ? 4 : $_FILES[$field]['error'][$i];
switch($error)
{
case 1: // UPLOAD_ERR_INI_SIZE
$error_hold[$i] = 'upload_file_exceeds_limit';
break;
case 2: // UPLOAD_ERR_FORM_SIZE
$error_hold[$i] = 'upload_file_exceeds_form_limit';
break;
case 3: // UPLOAD_ERR_PARTIAL
$error_hold[$i] = 'upload_file_partial';
break;
case 4: // UPLOAD_ERR_NO_FILE
$error_hold[$i] = 'upload_no_file_selected';
break;
case 6: // UPLOAD_ERR_NO_TMP_DIR
$error_hold[$i] = 'upload_no_temp_directory';
break;
case 7: // UPLOAD_ERR_CANT_WRITE
$error_hold[$i] = 'upload_unable_to_write_file';
break;
case 8: // UPLOAD_ERR_EXTENSION
$error_hold[$i] = 'upload_stopped_by_extension';
break;
default :
$error_hold[$i] = 'upload_no_file_selected';
break;
}
return FALSE;
}
// Set the uploaded data as class variables
$CI->upload->file_temp = $_FILES[$field]['tmp_name'][$i];
$CI->upload->file_name = $CI->upload->_prep_filename($_FILES[$field]['name'][$i]);
$CI->upload->file_size = $_FILES[$field]['size'][$i];
$CI->upload->file_type = preg_replace("/^(.+?);.*$/", "\\1", $_FILES[$field]['type'][$i]);
$CI->upload->file_type = strtolower($CI->upload->file_type);
$CI->upload->file_ext = $CI->upload->get_extension($_FILES[$field]['name'][$i]);
// Convert the file size to kilobytes
if ($CI->upload->file_size > 0)
{
$CI->upload->file_size = round($CI->upload->file_size/1024, 2);
}
// Is the file type allowed to be uploaded?
if ( ! $CI->upload->is_allowed_filetype())
{
$error_hold[$i] = 'upload_invalid_filetype';
}
// Is the file size within the allowed maximum?
if ( ! $CI->upload->is_allowed_filesize())
{
$error_hold[$i] = 'upload_invalid_filesize';
}
// Are the image dimensions within the allowed size?
// Note: This can fail if the server has an open_basdir restriction.
if ( ! $CI->upload->is_allowed_dimensions())
{
$error_hold[$i] = 'upload_invalid_dimensions';
}
// Sanitize the file name for security
$CI->upload->file_name = $CI->upload->clean_file_name($CI->upload->file_name);
// Remove white spaces in the name
if ($CI->upload->remove_spaces == TRUE)
{
$CI->upload->file_name = preg_replace("/\s+/", "_", $CI->upload->file_name);
}
/*
* Validate the file name
* This function appends an number onto the end of
* the file if one with the same name already exists.
* If it returns false there was a problem.
*/
$CI->upload->orig_name = $CI->upload->file_name;
if ($CI->upload->overwrite == FALSE)
{
$CI->upload->file_name = $CI->upload->set_filename($CI->upload->upload_path, $CI->upload->file_name);
if ($CI->upload->file_name === FALSE)
{
$error_hold[$i] = TRUE;
}
}
/*
* Move the file to the final destination
* To deal with different server configurations
* we'll attempt to use copy() first. If that fails
* we'll use move_uploaded_file(). One of the two should
* reliably work in most environments
*/
if ( ! @copy($CI->upload->file_temp, $CI->upload->upload_path.$CI->upload->file_name))
{
if ( ! @move_uploaded_file($CI->upload->file_temp, $CI->upload->upload_path.$CI->upload->file_name))
{
$error_hold[$i] = 'upload_destination_error';
}
}
/*
* Run the file through the XSS hacking filter
* This helps prevent malicious code from being
* embedded within a file. Scripts can easily
* be disguised as images or other file types.
*/
if ($CI->upload->xss_clean == TRUE)
{
$CI->upload->do_xss_clean();
}
if ($error_hold[$i]) {
$error_upload = TRUE;
// echo $error_hold[$i];
} else {
if ($imageVar = $this->multiple_image_properties($CI->upload->upload_path.$CI->upload->file_name)) {
$file_list[] = array(
'name' => $CI->upload->file_name,
'file' => $CI->upload->upload_path.$CI->upload->file_name,
'size' => $CI->upload->file_size,
'ext' => $CI->upload->file_ext,
'image_type' => $imageVar->image_type,
'height' => $imageVar->height,
'width' => $imageVar->width
);
} else {
$file_list[] = array(
'name' => $CI->upload->file_name,
'file' => $CI->upload->upload_path.$CI->upload->file_name,
'size' => $CI->upload->file_size,
'type' => $CI->upload->file_type,
'ext' => $CI->upload->file_ext,
);
}
}
// For debugging
/*
if (strlen($error_hold[$i]) > 1) {
print_r($error_hold);
}
*/
} // end for loop
// Add error display for individual files
if ($error_upload) {
$this->set_error($error_hold);
return FALSE;
} else {
return $file_list;
}
}
// --------------------------------------------------------------------
/**
* Set Image Properties
*
* Uses GD to determine the width/height/type of image
*
* @access public
* @param string
* @return void
*/
function multiple_image_properties($path = '')
{
$CI =& get_instance();
if ( ! $CI->upload->is_image())
{
return false;
}
if (function_exists('getimagesize'))
{
if (FALSE !== ($D = @getimagesize($path)))
{
$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
$image->width = $D['0'];
$image->height = $D['1'];
$image->image_type = ( ! isset($types[$D['2']])) ? 'unknown' : $types[$D['2']];
return $image;
}
}
}
// --------------------------------------------------------------------
/**
* Set an error message
*
* @access public
* @param string
* @return void
*/
function set_error($msg)
{
$CI =& get_instance();
$CI->lang->load('upload');
if (is_array($msg))
{
foreach ($msg as $val)
{
$msg = ($CI->lang->line($val) == FALSE) ? $val : $CI->lang->line($val);
$this->error_msg[] = $msg;
log_message('error', $msg);
}
}
else
{
$msg = ($CI->lang->line($msg) == FALSE) ? $msg : $CI->lang->line($msg);
$this->error_msg[] = $msg;
log_message('error', $msg);
}
}
// --------------------------------------------------------------------
}
?>
回答1:
I solved this exact problem by amending the Upload.php files located in the library folder.
Comment out line 935:
$filename = $this->file_name;
回答2:
Faced the exact similar stuff 2 days ago but did it the old fashioned way hope it helps. try this ..
function tester(){
$this->load->library('upload'); // NOTE: always load the library outside the loop
$this->total_count_of_files = count($_FILES['filename']['name'])
/*Because here we are adding the "$_FILES['userfile']['name']" which increases the count, and for next loop it raises an exception, And also If we have different types of fileuploads */
for($i=0; $i<$this->total_count_of_files; $i++)
{
$_FILES['userfile']['name'] = $_FILES['filename']['name'][$i];
$_FILES['userfile']['type'] = $_FILES['filename']['type'][$i];
$_FILES['userfile']['tmp_name'] = $_FILES['filename']['tmp_name'][$i];
$_FILES['userfile']['error'] = $_FILES['filename']['error'][$i];
$_FILES['userfile']['size'] = $_FILES['filename']['size'][$i];
$config['file_name'] = 'test_'.$i;
$config['upload_path'] = './public/uploads/';
$config['allowed_types'] = 'jpg|jpeg|gif|png';
$config['max_size'] = '0';
$config['overwrite'] = FALSE;
$this->upload->initialize($config);
if($this->upload->do_upload())
{
$error += 0;
}else{
$error += 1;
}
}
if($error > 0){ return FALSE; }else{ return TRUE; }
}
回答3:
For me it was enough to recall
$this->upload->initialize($config);
every time I called $this->upload->do_upload()
回答4:
I am a bit confused by your answer thephpx. Won't restructuring $_FILES like that kill off the subarrays once you ahve run it once?
At any rate, I was trying OP's approach by adding the extra index to the a few of the upload library's lines.
I made it work by putting the for loop (over all files) in the upload controller, and the extra index $k as a parameter in the do_upload function in the library.
$this->load->library('upload');
for ($k = 0; $k < count($_FILES['userfile']['name']); $k++) {
$this->upload->initialize($upload); //must reinitialize to get rid of your bug ( i had it as well)
if (!$this->upload->do_upload('userfile',$k)) {
$this->load->view('upload/image_form', $data + array('error'=>$this->upload->display_errors()));
}
$udata[$k] = $this->upload->data(); //gradually build up upload->data()
}
回答5:
I was able to get multiple file uploads to work with clux's method but I had to modify the upload class slightly (I'm using Codeigniter 2). First I created a duplicate of the CI upload class into my applications library.
Line 143:
public function do_upload($field = 'userfile')
change to
public function do_upload($field = 'userfile', $i = 0)
And between lines 160 and 200, you must add [$i] to the end of the $_FILES variables.
Example:
is_uploaded_file($_FILES[$field]['tmp_name'])
change to:
is_uploaded_file($_FILES[$field]['tmp_name'][$i])
I believe there is a total of 9 of them.
来源：https://stackoverflow.com/questions/1908247/codeigniter-multiple-file-upload-messes-file-extension