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thinkphp 多图片上传(WebUploader)

PHP图像编程

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  • 开发语言:PHP
  • 实例大小:2.76M
  • 下载次数:90
  • 浏览次数:1318
  • 发布时间:2016-07-30
  • 实例类别:PHP图像编程
  • 发 布 人:cocolovepanpan
  • 文件格式:.zip
  • 所需积分:5
 相关标签: 上传 图片 thinkPHP webuploader

实例介绍

【实例简介】利用thinkphp中的upload类可以获取上传的文件,可带预览效果
【实例截图】


【核心代码】



<?php
namespace Home\Controller;
use Think\Controller;
class IndexController extends Controller 
{
    public function upload()
    {
        header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
        header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
        header("Cache-Control: no-store, no-cache, must-revalidate");
        header("Cache-Control: post-check=0, pre-check=0", false);
        header("Pragma: no-cache");
        
        if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
            exit; // finish preflight CORS requests here
        }
        if ( !empty($_REQUEST[ 'debug' ]) ) {
            $random = rand(0, intval($_REQUEST[ 'debug' ]) );
            if ( $random === 0 ) {
                header("HTTP/1.0 500 Internal Server Error");
                exit;
            }
        }
        @set_time_limit(5 * 60);
        $targetDir = './Public/Home/uploads'.DIRECTORY_SEPARATOR.'file_material_tmp';
        $uploadDir = './Public/Home/uploads'.DIRECTORY_SEPARATOR.'file_material'.DIRECTORY_SEPARATOR.date('Ymd');
        $cleanupTargetDir = true; // Remove old files
        $maxFileAge = 5 * 3600; // Temp file age in seconds
        // Create target dir
        if (!file_exists($targetDir)) {
            @mkdir($targetDir);
        }
        // Create target dir
        if (!file_exists($uploadDir)) {
            @mkdir($uploadDir);
        }
        // Get a file name
        if (isset($_REQUEST["name"])) {
            $fileName = $_REQUEST["name"];
        } elseif (!empty($_FILES)) {
            $fileName = $_FILES["file"]["name"];
        } else {
            $fileName = uniqid("file_");
        }
        $oldName = $fileName;
        $filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;
        $uploadPath = $uploadDir . DIRECTORY_SEPARATOR . $fileName;
        // Chunking might be enabled
        $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
        $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 1;
        // Remove old temp files
        if ($cleanupTargetDir) {
            if (!is_dir($targetDir) || !$dir = opendir($targetDir)) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}');
            }
            while (($file = readdir($dir)) !== false) {
                $tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;
                // If temp file is current file proceed to the next
                if ($tmpfilePath == "{$filePath}_{$chunk}.part" || $tmpfilePath == "{$filePath}_{$chunk}.parttmp") {
                    continue;
                }
                // Remove temp file if it is older than the max age and is not the current file
                if (preg_match('/\.(part|parttmp)$/', $file) && (@filemtime($tmpfilePath) < time() - $maxFileAge)) {
                    @unlink($tmpfilePath);
                }
            }
            closedir($dir);
        }
        
        // Open temp file
        if (!$out = @fopen("{$filePath}_{$chunk}.parttmp", "wb")) {
            die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
        }
        if (!empty($_FILES)) {
            if ($_FILES["file"]["error"] || !is_uploaded_file($_FILES["file"]["tmp_name"])) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file."}, "id" : "id"}');
            }
            // Read binary input stream and append it to temp file
            if (!$in = @fopen($_FILES["file"]["tmp_name"], "rb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
            }
        } else {
            if (!$in = @fopen("php://input", "rb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
            }
        }
        while ($buff = fread($in, 4096)) {
            fwrite($out, $buff);
        }
        @fclose($out);
        @fclose($in);
        rename("{$filePath}_{$chunk}.parttmp", "{$filePath}_{$chunk}.part");
        $index = 0;
        $done = true;
        for( $index = 0; $index < $chunks; $index   ) {
            if ( !file_exists("{$filePath}_{$index}.part") ) {
                $done = false;
                break;
            }
        }
        if ( $done ) {
            $pathInfo = pathinfo($fileName);
            $hashStr = substr(md5($pathInfo['basename']),8,16);
            $hashName = time() . $hashStr . '.' .$pathInfo['extension'];
            $uploadPath = $uploadDir . DIRECTORY_SEPARATOR .$hashName;
        
            if (!$out = @fopen($uploadPath, "wb")) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
            }
            if ( flock($out, LOCK_EX) ) {
                for( $index = 0; $index < $chunks; $index   ) {
                    if (!$in = @fopen("{$filePath}_{$index}.part", "rb")) {
                        break;
                    }
                    while ($buff = fread($in, 4096)) {
                        fwrite($out, $buff);
                    }
                    @fclose($in);
                    @unlink("{$filePath}_{$index}.part");
                }
                flock($out, LOCK_UN);
            }
            @fclose($out);
            $response = [
                'success'=>true,
                'oldName'=>$oldName,
                'filePaht'=>$uploadPath,
                //'fileSize'=>$data['size'],
                'fileSuffixes'=>$pathInfo['extension']
                //'file_id'=>$data['id'],
            ];
        
            die(json_encode($response));
        }
        
        // Return Success JSON-RPC response
        die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
        //echo $uploadPath = $uploadDir . DIRECTORY_SEPARATOR .$hashName;
    }
    public function preview()
    {
        $DIR = 'preview';
        // Create target dir
        if (!file_exists($DIR)) {
            @mkdir($DIR);
        }
        
        $cleanupTargetDir = true; // Remove old files
        $maxFileAge = 5 * 3600; // Temp file age in seconds
        
        if ($cleanupTargetDir) {
            if (!is_dir($DIR) || !$dir = opendir($DIR)) {
                die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}');
            }
        
            while (($file = readdir($dir)) !== false) {
                $tmpfilePath = $DIR . DIRECTORY_SEPARATOR . $file;
        
                // Remove temp file if it is older than the max age and is not the current file
                if (@filemtime($tmpfilePath) < time() - $maxFileAge) {
                    @unlink($tmpfilePath);
                }
            }
            closedir($dir);
        }
        
        $src = file_get_contents('php://input');
        
        if (preg_match("#^data:image/(\w );base64,(.*)$#", $src, $matches)) {
        
            $previewUrl = sprintf(
                "%s://%s%s",
                isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' ? 'https' : 'http',
                $_SERVER['HTTP_HOST'],
                $_SERVER['REQUEST_URI']
            );
            $previewUrl = str_replace("__URL__/preview", "", $previewUrl);
        
        
            $base64 = $matches[2];
            $type = $matches[1];
            if ($type === 'jpeg') {
                $type = 'jpg';
            }
        
            $filename = md5($base64).".$type";
            $filePath = $DIR.DIRECTORY_SEPARATOR.$filename;
        
            if (file_exists($filePath)) {
                die('{"jsonrpc" : "2.0", "result" : "'.$previewUrl.'preview/'.$filename.'", "id" : "id"}');
            } else {
                $data = base64_decode($base64);
                file_put_contents($filePath, $data);
                die('{"jsonrpc" : "2.0", "result" : "'.$previewUrl.'preview/'.$filename.'", "id" : "id"}');
            }
        
        } else {
            die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "un recoginized source"}}');
        }
        
    }
    //首页面
    public function index()
    {
        if (isset($_POST['subd']))
        {
            print_r($_POST);
        }
       
        
        $this->display();
    }
    
    
    
    
    
    
   
}


?>

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thinkphp 多图片上传(WebUploader)

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