javascript html5移动端轻松实现文件上传

<div class="camera-area"> <form enctype="multipart/form-data" method="post"> <input type="file" name="fileToUpload" class="fileToUpload" accept="image/*" capture="camera"/>  <div class="upload-progress"><span></span></div> </form> <div class="thumb"></div> </div>

(function($) { $.extend($.fn, { fileUpload: function(opts) { this.each(function() { var $self = $(this); var doms = {  "fileToUpload": $self.find(".fileToUpload"),  "thumb": $self.find(".thumb"),  "progress": $self.find(".upload-progress") }; var funs = {  //选择文件，获取文件大小，也可以在这里获取文件格式，限制用户上传非要求格式的文件  "fileSelected": function() {  var files = (doms.fileToUpload)[0].files;  var count = files.length;  for (var index = 0; index < count; index++) {  var file = files[index];  var fileSize = 0;  if (file.size > 1024 * 1024)  fileSize = (Math.round(file.size * 100 / (1024 * 1024)) / 100).toString() + 'MB';  else  fileSize = (Math.round(file.size * 100 / 1024) / 100).toString() + 'KB';  }  funs.uploadFile();  },  //异步上传文件  uploadFile: function() {  var fd = new FormData();//创建表单数据对象  var files = (doms.fileToUpload)[0].files;  var count = files.length;  for (var index = 0; index < count; index++) {  var file = files[index];  fd.append(opts.file, file);//将文件添加到表单数据中  funs.previewImage(file);//上传前预览图片，也可以通过其他方法预览txt  }  var xhr = new XMLHttpRequest();  xhr.upload.addEventListener("progress", funs.uploadProgress, false);//监听上传进度  xhr.addEventListener("load", funs.uploadComplete, false);  xhr.addEventListener("error", opts.uploadFailed, false);  xhr.open("POST", opts.url);  xhr.send(fd);  },  //文件预览  previewImage: function(file) {  var gallery = doms.thumb;  var img = document.createElement("img");  img.file = file;  doms.thumb.html(img);  // 使用FileReader方法显示图片内容  var reader = new FileReader();  reader.onload = (function(aImg) {  return function(e) {  aImg.src = e.target.result;  };  })(img);  reader.readAsDataURL(file);  },  uploadProgress: function(evt) {  if (evt.lengthComputable) {  var percentComplete = Math.round(evt.loaded * 100 / evt.total);  doms.progress.html(percentComplete.toString() + '%');  }  },  "uploadComplete": function(evt) {  alert(evt.target.responseText)  } }; doms.fileToUpload.on("change", function() {  doms.progress.find("span").width("0");  funs.fileSelected(); }); }); } });})(Zepto);

$(".camera-area").fileUpload({ "url": "savetofile.php", "file": "myFile" });

<?phpif (isset($_FILES['myFile'])) { // Example: writeLog($_FILES); move_uploaded_file($_FILES['myFile']['tmp_name'], "uploads/" . $_FILES['myFile']['name']); echo 'successful';}function writeLog($log){ if(is_array($log) || is_object($log)){ $log = json_encode($log); } $log = $log."/r/n"; file_put_contents('log.log', $log,FILE_APPEND);}?>