h5+php实现图片上传

html:

<form  enctype="multipart/form-data" method="post">
<input type="file" id="uploadFile" runat="server" />
<input type="button" id="btnUpload" value="确定" onclick="uploadImage()" />
<div id="imgDiv">
</div>
</form>

<script type="text/javascript">
function uploadImage() {
//判断是否有选择上传文件
var imgPath = $("#uploadFile").val();
if (imgPath == "") {
alert("请选择上传图片!");
return;
}
//判断上传文件的后缀名
var strExtension = imgPath.substr(imgPath.lastIndexOf('.') + 1);
if (strExtension != 'jpg' && strExtension != 'gif'
&& strExtension != 'png' && strExtension != 'bmp') {
alert("请选择图片文件");
return;
};
var formdata = new FormData();
var fileObj = $("#uploadFile").get(0).files;
formdata.append("file", fileObj[0]);
formdata.append("aid", 30);
formdata.append("nickname", "你好");
$.ajax({
type: "POST",
url: 'test.php',
data: formdata,
processData: false,
contentType: false,
cache: false,
success: function(data) {
//alert("上传成功");
$("#imgDiv").empty();
$("#imgDiv").html(data);
$("#imgDiv").show();
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
//alert("上传失败,请检查网络后重试");
console.log(XMLHttpRequest);
console.log(textStatus);
console.log(errorThrown);
}
});
}
</script>

test.php:

<?php

//如果接收的数据包含图片文件

if(isset($_FILES['file'])){

  $aid = intval($_POST['aid']);
  $nickname = ($_POST['nickname']);
  //获取图片的临时路径
  $image = $_FILES["file"]['tmp_name'];
  //只读方式打开图片文件
  $fp = fopen($image, "r");
  //读取文件(可安全用于二进制文件)
  $file = fread($fp, $_FILES["file"]["size"]); //二进制数据流
  //保存地址
  $imgDir = 'account_imgs/';
  //要生成的图片名字
  //$filename = date("Ym")."/".md5(time().mt_rand(10, 99)).".jpg"; //新图片名称
  $filename = "2017new.jpg";
  //新图片的路径
  $newFilePath = $imgDir.$filename;
  $data = $file;
  $newFile = fopen($newFilePath,"w"); //打开文件准备写入
  fwrite($newFile,$data); //写入二进制流到文件
  fclose($newFile); //关闭文件
  //写入数据库
  $sql = "update account set nickname = '".$nickname."', img = '".$filename."' where aid = ".$aid;

  if(!$db->query($sql)) {
    Json_out(array('result'=>'imgfail'));
    exit;
  }else{
    Json_out(array('result'=>'imgsuccess'));
    exit;
  }
} else{
  $aid = intval($_REQUEST['aid']);
  $nickname = $_REQUEST['nickname'];

  $sql = "update `account` set nickname = '".$nickname."' where aid = ".$aid;

  if(!$db->query($sql)) {
    Json_out(array('result'=>'fail'));
    exit;
  }else{
    Json_out(array('result'=>'noimgsuccess'));
  exit;
  }
}

?>



posted @ 2017-01-12 09:44  SingleShadow  阅读(3962)  评论(0编辑  收藏  举报