webuploader多圖檔上傳php,thinkphp 多圖檔上傳(WebUploader)

【執行個體簡介】利用thinkphp中的upload類可以擷取上傳的檔案，可帶預覽效果

【執行個體截圖】

【核心代碼】

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"}}');

}

}

//首頁面

public function index()

{

if (isset($_POST['subd']))

{

print_r($_POST);

}

$this->display();

}

}

?>