php CI框架同时上传2张不同大小和不同尺寸的图片
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控制器:
<?php defined('BASEPATH') OR exit('No direct script access allowed'); class Welcome extends CI_Controller { /** * author : lianghuiju@jiayuan.com * function_name : index * description : */ public function index() { if ($_FILES['imgfile']['name'] != '') {//详情主图 $imgfile = $this->upload("100","400","400","imgfile"); echo "imgfile:"; var_dump($imgfile); } echo "<br/>"; if ($_FILES['litterimg']['name'] != '') {//矩形图 $little_img = $this->upload("150","750","350","litterimg"); echo "ittle_img:"; var_dump($little_img); } } /** * 图片上传 * @param $size int 图片的大小 * @param $width int 图片的宽度 * @param $height int 图片的高度 * @param $name string form表单name名字 * @param $randname string 上传图片的name * @return mixed * author : lianghuiju@jiayuan.com * function_name : upload * description : */ function upload($size, $width, $height, $name,$randname) { $config['upload_path'] = './uploads/';//路径 $config['allowed_types'] = 'gif|jpg|png|jpeg';//类型 $config['max_size'] = $size;//100k以内 $config['max_width'] = $width; $config['max_height'] = $height; $config['file_name'] = $this->getNewName($randname); //文件名不使用原始名 $this->load->library('upload'); $this->upload->initialize($config); if (!$this->upload->do_upload($name)) { return $this->upload->display_errors(); } else { $data['upload_data'] = $this->upload->data(); //文件的一些信息 $img = $data['upload_data']['file_name']; //取得文件名 return $img; } } /** * 生成一个无重复的文件名 * @param $filename string 上传图片的name * @return string 上传图片的文件名 * author : lianghuiju@jiayuan.com * function_name : getNewName * description : */ function getNewName($filename) { //年月日时分秒格式的字符串 $timeNow = date('YmdHis', time()); //生成一个8位小写字母的随机字符串 $randKey = ''; for ($a = 0; $a < 8; $a++) { $randKey .= chr(mt_rand(97, 122)); } $fileParts = pathinfo($filename);//取得文件关联数组信息 $name = strtolower($fileParts['extension']);//文件扩展名转换为小写 $extName = "." . $name;//取得原文件的扩展名 //组成新文件名 $newName = $timeNow . $randKey . $extName; return $newName; } }
html文件:
<?php defined('BASEPATH') OR exit('No direct script access allowed'); ?><!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Welcome to CodeIgniter</title> <body> <form action="index.php?c=Welcome&m=index" name="theForm" method="post" enctype="multipart/form-data"> 商品图片:<input type="file" name="imgfile"/>图片大小:(400*400)<br/><br/> 拼团矩形图:<input type="file" name="litterimg"/>图片大小:(750*350)<br/><br/> <input type="submit" value="提交"/> </form> </body> </html>
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