本文實(shí)例講述了CI框架實(shí)現(xiàn)遞歸生成文件路徑并重新生成圖片功能。分享給大家供大家參考,具體如下:
- <!--?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
- set_time_limit(0);
- class Img_build extends CI_Controller{
- private static $img_path = 'upload_old/';
- private static $new_path = 'upload/';
- function __construct()
- {
- parent::__construct();
- }
- /**
- * 獲取需要讀取的路徑的信息
- * $map = array (
- * '路徑名' =--> array (文件1, 文件2, 文件3)
- * )
- */
- public function index()
- {
- $this->load->helper('directory');
- //讀取路徑的信息
- $map = directory_map(self::$img_path, FALSE, TRUE);
- echo "<pre>";
- print_r($map);
- echo "</pre>";
- if(!emptyempty($map) && is_array($map))
- {
- $this->build_path($map);
- }
- }
- /**
- * 遞歸生成相應(yīng)的路徑
- * @param array $map
- */
- private function build_path($map = array())
- {
- if(!file_exists(self::$new_path))
- {
- mkdir(self::$new_path, 0777);
- }
- foreach($map as $key => $val)
- {
- $old_img_path = self::$img_path;
- $old_tmp_path = self::$img_path.$key.'/';
- $new_img_path = self::$new_path;
- $new_tmp_path = self::$new_path.$key.'/';
- if(is_dir($old_tmp_path))
- {
- //echo $new_tmp_path;
- if(!file_exists($new_tmp_path))
- {
- mkdir($new_tmp_path, 0777);
- }
- self::$img_path = $old_tmp_path;
- self::$new_path = $new_tmp_path;
- echo 'path:'.self::$img_path."<hr>";
- $this->load->helper('directory');
- $c_map = directory_map($old_tmp_path, FALSE, TRUE);
- // echo "<pre>";
- // print_r($c_map);
- // echo "</pre>";
- if(!emptyempty($c_map) && is_array($c_map))
- {
- $this->build_path($c_map);
- }
- }
- if(is_file(self::$img_path.$val))
- {
- echo 'file:'.self::$img_path.$val."<hr>";
- $img = array();
- $img['source_image'] = self::$img_path.$val;
- $img['new_image'] = self::$new_path.$val;
- $this->build_img($img);
- }
- self::$img_path = $old_img_path;
- self::$new_path = $new_img_path;
- }
- }
- /**
- * 根據(jù)原圖片生成新的圖片
- * @param array $img
- * $img = array('source_image'=> '原圖片的路徑', 'new_image' => '新圖片路徑')
- */
- private function build_img($img = array())
- {
- if(!is_array($img) || emptyempty($img))
- {
- return FALSE;
- }
- //設(shè)置圖像生成參數(shù)
- $config['image_library'] = 'gd2'; //設(shè)置圖像庫
- $config['source_image'] = $img['source_image']; //設(shè)置原始圖像的名字/路徑
- $config['create_thumb'] = FALSE; //讓圖像處理函數(shù)產(chǎn)生一個(gè)預(yù)覽圖像
- $config['maintain_ratio'] = TRUE; //指定是否在縮放或使用硬值的時(shí)候使圖像保持原始的縱橫比例
- //$config['quality'] = 200;
- $img_info = array();
- $img_info = getimagesize($config['source_image']);//獲取圖片的尺寸
- if(is_array($img_info) && !emptyempty($img_info))
- {
- $config['width'] = $img_info[0];
- $config['height'] = $img_info[1];
- }
- $config['new_image'] = $img['new_image']; //新圖片路徑
- $this->load->library('image_lib', $config); //加載圖片處理類
- $this->image_lib->initialize($config); //調(diào)用
- if ( ! $this->image_lib->resize())
- {
- echo $this->image_lib->display_errors();
- }//Vevb.com
- $this->image_lib->clear(); //清除圖片處理參數(shù)
- }
- }
- ?>
新聞熱點(diǎn)
疑難解答