PHP:imagedashedline()的用法_GD库图像处理函数
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2023-12-15
PHP + plupload.js JS插件实现多图上传并显示进度条加删除实例，废话不多说，直接上代码
HTML代码：
<!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="http://www.gimoo.net/t/1805/jquery.min.js"></script>
<script type="text/javascript" src="http://www.gimoo.net/t/1805/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>
<div class="demo">
<a href="javascript:void(0)" rel="external nofollow" id="btn"></a>
<ul id="ul_pics" class="ul_pics clearfix">
</ul>
</div>
<script type="text/javascript">
var uploader = new plupload.Uploader({ //创建实例的构造方法
runtimes: 'html5,flash,silverlight,html4', //上传插件初始化选用那种方式的优先级顺序
browse_button: 'btn', // 上传按钮
url: "upimgs.php?get=upimg", //远程上传地址
flash_swf_url: 'plupload/Moxie.swf', //flash文件地址
silverlight_xap_url: 'plupload/Moxie.xap', //silverlight文件地址
filters: {
max_file_size: '10mb', //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 = '';
plupload.each(files, function(file) { //遍历文件
li += "<li id='" + file['id'] + "'><div class='progress'><span class='bar'></span><span class='percent'>上传中 0%</span></div></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('.bar').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='http://www.gimoo.net/t/1805/5af2c1793a259.html" + this.url + "'/><i onclick='delimg(this)'>x</i><input type='hidden' name='' value='"+ this.url +"'>");
},
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 代码：
<?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['get']=="upimg"){
$name = $_FILES['file']['name'];
$size = $_FILES['file']['size'];
$name_tmp = $_FILES['file']['tmp_name'];
if (empty($name)) {
echo json_encode(array("error"=>"您还未选择图片"));
exit;
}
$type = strtolower(substr(strrchr($name, '.'), 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['get']=="delimg"){
$imgsrc = $_GET['imgurl'];
unlink($imgsrc);
echo 1;
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持绿夏网。
