php图片上传

要进行文件的上传，需要对form表单进行特殊设置;

1.设定表单数据的提交方式为POST

2.设定enctype属性值为:multipart/form-data

      //file必须

   



//打印上传图片信息

   

//打印图片

js:

var doc = document.getElementById('doc');

var info = document.getElementById('info');

var dis = document.getElementById('dis');

doc.onchange = function(){

  var file = this.files[0];

  var html = "name:"+file.name+"
";

  html += "size:"+file.size+"
";

  html += "type:"+file.type;

  info.innerHTML = html;

//URL.createObjectURL()方法会根据传入的参数创建一个指向该参数对象的URL.

  var url = URL.createObjectURL(file);

  dis.src = url;

}