如何使用Codeigniter上传多张图片

本文介绍了如何使用Codeigniter上传多张图片的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我可以上传&在数据库中插入一个图像.但是我无法上传多张图片，为了上传多张图片，我应该在下面的代码中进行哪些更改

I am able to upload & insert a image ine the database. But I am unable to upload multiple images, what should I change in the below code , in order to upload multiple images

我的form.php

My form.php

<?php echo form_open_multipart('admin/addproduct'); ?> <table border="0" cellspacing="0" cellpadding="0" style="width:60%;"> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Product name </td> <td style="vertical-align: top;width:50%;"><?php echo form_input($fpname) ?> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Price </td> <td style="vertical-align: top;width:50%;"><?php echo form_input($fprice) ?> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Image 1: </td> <td style="vertical-align: top;width:50%;"><?php echo form_upload("userfile"); ?></td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Image 2: </td> <td style="vertical-align: top;width:50%;"><?php echo form_upload("img2"); ?> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;">Image 3: </td> <td style="vertical-align: top;width:50%;"><?php echo form_upload("img3"); ?> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Details </td> <td style="vertical-align: top;width:50%;"><?php echo form_textarea($fdetails) ?> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: center" colspan="2"> <input type="submit" value="Submit"/> </td> </tr> </table> <?php echo form_close(); ?>

controller.php

controller.php

function addproduct() { $config['upload_path'] = './uploads/'; $config['allowed_types'] = 'gif|jpg|png'; $config['max_size'] = '1879800'; $config['max_width'] = '1024'; $config['max_height'] = '2768'; $config['encrypt_name'] = TRUE; $this->load->library('upload', $config); $this->load->library('form_validation'); $this->form_validation->set_error_delimiters('<li>', '</li>')->set_rules('pname', 'Product Name', 'trim|min_length[4]|required|max_length[112]'); $this->form_validation->set_error_delimiters('<li>', '</li>')->set_rules('details', 'Details', 'trim|min_length[4]|required|max_length[12]'); $this->form_validation->set_error_delimiters('<li>', '</li>')->set_rules('price', 'Price', 'trim|min_length[4]|required|max_length[112]|numeric'); if (!$this->form_validation->run()) {//--false $data = $this->productmodel->productdetails(); $this->load->view('admin/home', $data); } if (!$this->upload->do_upload()) { // no file uploaded or failed upload $error = array('error' => $this->upload->display_errors()); $data = $this->productmodel->productdetails(); print_r($error); $this->load->view('admin/home', $data); } else { $data =$this->upload->data(); $this->productmodel->entry_insert_productdetails($data["file_name"]); $data = $this->productmodel->productdetails(); $this->session->set_flashdata('msg', 'One record added successfully...'); redirect(base_url().'index.php/admin/index'); } }

更新: 从表单生成的源代码

Update: Source code generated from the form

<form action="localhost/wclick/index.php/admin/addproduct" method="post" accept-charset="utf-8" enctype="multipart/form-data"> <table border="0" cellspacing="0" cellpadding="0" style="width:60%;"> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Product name </td> <td style="vertical-align: top;width:50%;"><input type="text" name="pname" value="" maxlength="190" size="20" /> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Price </td> <td style="vertical-align: top;width:50%;"><input type="text" name="price" value="" maxlength="20" size="20" placeholder=" " id="txtsubject" /> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Image 1: </td> <td style="vertical-align: top;width:50%;"><input type="file" name="userfile" value="" /></td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Image 2: </td> <td style="vertical-align: top;width:50%;"><input type="file" name="img2" value="" /> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;">Image 3: </td> <td style="vertical-align: top;width:50%;"><input type="file" name="img3" value="" /> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: right;"> Details </td> <td style="vertical-align: top;width:50%;"><textarea name="details" cols="20" rows="4" ></textarea> </td> </tr> <tr> <td style="vertical-align: top;width:50%;text-align: center" colspan="2"> <input type="submit" value="Submit"/> </td> </tr> </table> </form>

推荐答案

每次在do_upload之前调用以下函数

Call below function every time before do_upload

$this->upload->initialize($upload);

假定此数组中的所有文件

Assume all files in this array

$ _ FILES ['userfile'] ['name'] 那么您的脚本看起来就像

$_FILES['userfile']['name'] then your script would look like

$this->load->library('upload'); for ($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() }