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PHP + plupload.js implements multi-image upload and displays progress bar plus deletion example code

黄舟Original: 2017-03-08 09:13:321698browse

This article mainly introduces PHP + plupload.js to implement multiple image uploads and display the progress bar and delete example code. It has certain reference value, and those who are interested can learn about it.

PHP + plupload.js JS plug-in implements multiple image uploads and displays progress bars and deletion instances. Without further ado, let’s go directly to the code

HTML code:

<!DOCTYPE html> 
 
<head> 
<meta charset="utf-8" /> 
<meta name="viewport" content="initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"> 
<title>多图上传</title> 
<script type="text/javascript" src="jquery.min.js"></script> 
<script type="text/javascript" src="plupload.full.min.js"></script> 
</head> 
<body> 
<style type="text/css"> 
*{ margin:0px; padding:0px; font-family:Microsoft Yahei; box-sizing:border-box; -webkit-box-sizing:border-box;} 
.demo{max-width:640px; margin:0 auto; min-width:320px;} 
.ul_pics{ float:left;} 
.ul_pics li{float:left; margin:0px; padding:0px; margin-left:5px; margin-top:5px; position:relative; 
list-style-type:none; border:1px solid #eee; width:80px; height:80px;} 
.ul_pics li img{width:80px;height:80px;} 
.ul_pics li i{ position:absolute; top:0px; right:-1px; background:red; cursor:pointer; font-style:normal; 
font-size:10px; width:14px; height:14px; text-align:center; line-height:12px; color:#fff;} 
.progress{position:relative; margin-top:30px; background:#eee;}  
.bar {background-color: green; display:block; width:0%; height:15px; }  
.percent{position:absolute; height:15px; top:-18px; text-align:center; display:inline-block; left:0px; width:80px; color:#666; line-height:15px; font-size:12px; }  
.demo #btn{ width:80px; height:80px; margin-left:5px; margin-top:5px; border:1px dotted #c2c2c2; 
background:url(up.png) no-repeat center; background-size:30px auto; text-align:center; line-height:120px; font-size:30px; color:#666; float:left;} 
</style> 
<p class="demo"> 
 <a href="javascript:void(0)" rel="external nofollow" id="btn"></a> 
 <ul id="ul_pics" class="ul_pics clearfix"> 
 </ul>  
</p> 
<script type="text/javascript"> 
var uploader = new plupload.Uploader({    //创建实例的构造方法 
 runtimes: &#39;html5,flash,silverlight,html4&#39;, //上传插件初始化选用那种方式的优先级顺序 
 browse_button: &#39;btn&#39;,           // 上传按钮 
 url: "upimgs.php?get=upimg",        //远程上传地址 
 flash_swf_url: &#39;plupload/Moxie.swf&#39;,    //flash文件地址 
 silverlight_xap_url: &#39;plupload/Moxie.xap&#39;, //silverlight文件地址 
 filters: { 
  max_file_size: &#39;10mb&#39;, //最大上传文件大小（格式100b, 10kb, 10mb, 1gb） 
  mime_types: [  //允许文件上传类型 
    {title: "files", extensions: "jpg,png,gif"} 
  ] 
 }, 
 multipart_params:{ },  //文件上传附加参数 
 file_data_name:"upimg", //文件上传的名称 
 multi_selection: false, //true:ctrl多文件上传, false 单文件上传 
 init: { 
  FilesAdded: function(up, files) { //文件上传前 
    if ($("#ul_pics").children("li").length > 5) { 
      alert("您上传的图片太多了！"); 
      uploader.destroy(); 
    } else { 
      var li = &#39;&#39;; 
      plupload.each(files, function(file) { //遍历文件 
        li += "<li id=&#39;" + file[&#39;id&#39;] + "&#39;><p class=&#39;progress&#39;><span class=&#39;bar&#39;></span><span class=&#39;percent&#39;>上传中 0%</span></p></li>"; 
      }); 
      $("#ul_pics").append(li); 
      uploader.start(); 
    } 
  }, 
  UploadProgress: function(up, file) { //上传中，显示进度条 
  var percent = file.percent; 
    $("#" + file.id).find(&#39;.bar&#39;).css({"width": percent + "%"}); 
    $("#" + file.id).find(".percent").text("上传中 "+percent + "%"); 
  }, 
  FileUploaded: function(up, file, info) { //文件上传成功的时候触发 
    var data = eval("(" + info.response + ")"); 
    $("#" + file.id).html("<img src=&#39;" + this.url + "&#39;/><i onclick=&#39;delimg(this)&#39;>x</i><input type=&#39;hidden&#39; name=&#39;&#39; value=&#39;"+ this.url +"&#39;>"); 
  }, 
  Error: function(up, err) { //上传出错的时候触发 
    alert("error"); 
  } 
 } 
}); 
uploader.init(); 
 
function delimg(o){ 
  var src = $(o).prev().attr("src");  
  $.post("upimgs.php?get=delimg&imgurl="+src,function(data){    
    if(data==1){ 
      $(o).parent().remove(); 
    } 
  })  
} 
</script> 
</body> 
</html>

PHP code:

<?php 
$typeArr = array("jpg", "png", "gif");//允许上传文件格式  
$path = "files/";//上传路径  
 if (isset($_POST)) {  
  if($_GET[&#39;get&#39;]=="upimg"){ 
   $name = $_FILES[&#39;file&#39;][&#39;name&#39;];  
   $size = $_FILES[&#39;file&#39;][&#39;size&#39;];  
   $name_tmp = $_FILES[&#39;file&#39;][&#39;tmp_name&#39;];  
   if (empty($name)) {  
     echo json_encode(array("error"=>"您还未选择图片"));  
     exit;  
   }  
   $type = strtolower(substr(strrchr($name, &#39;.&#39;), 1)); //获取文件类型  
     
   if (!in_array($type, $typeArr)) {  
     echo json_encode(array("error"=>"清上传jpg,png或gif类型的图片！"));  
     exit;  
   }  
   if ($size > (1024 * 1024 * 10)) {  
     echo json_encode(array("error"=>"图片大小已超过10MB！"));  
     exit;  
   }  
     
   $pic_name = time() . rand(10000, 99999) . "." . $type;//图片名称  
   $pic_url = $path . $pic_name;//上传后图片路径+名称  
   if (move_uploaded_file($name_tmp, $pic_url)) { //临时文件转移到目标文件夹  
     echo json_encode(array("error"=>"0","pic"=>$pic_url,"name"=>$pic_name));  
   } else {  
     echo json_encode(array("error"=>"上传有误，清检查服务器配置！"));  
   }  
  } 
  if($_GET[&#39;get&#39;]=="delimg"){ 
    $imgsrc = $_GET[&#39;imgurl&#39;]; 
    unlink($imgsrc); 
    echo 1; 
  } 
}

That’s it PHP + plupload.js implements multi-image uploading and displays the progress bar and deletes the content of the example code. For more related content, please pay attention to the PHP Chinese website (www.php.cn)!

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