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layui+php多图上传 layui图片上传可以一次性选择多个图片,然后选择多少张调用多少次上传接口设计思路:前端上传文件到后台,后台接收保存成功后返回图片路径,前端根据路径生成div,div包括img标签、隐藏的input（表单传值用）、删除按钮,点击删除按钮判断是第几个删除按钮并删除对应的标签前端页面: <!doctype html> <html> <head> <meta charset="utf-8"> <title>多图上传</title> <link rel="stylesheet" href="https://www.layuicdn.com/layui/css/layui.css"> <script src="https://www.layuicdn.com/layui/layui.js"></script> <style> .up-img{ width: 100px; height: 100px; } #demo2 div button{ position: relative; top: -38px; left: -13px; } </style> </head> <body> <fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;"> <legend>上传多张图片</legend> </fieldset> <div class="layui-upload"> <button type="button" class="layui-btn" id="test2">多图片上传</button> <blockquote class="layui-elem-quote layui-quote-nm" style="margin-top: 10px; height: 142px;"> 预览图： <div class="layui-upload-list" id="demo2" ></div> </blockquote> </div> </body> <script> layui.use(['upload','jquery'],function () { $ = layui.jquery; var upload = layui.upload; //执行实例 var uploadInst = upload.render({ elem: '#test2' ,url: 'upload1.php' //改成您自己的上传接口 ,multiple: true ,before: function(obj){ //预读本地文件示例，不支持ie8 // console.log(obj); obj.preview(function(index, file, result){ // $('#demo2').append('<img src="'+ result +'" alt="'+ file.name +'" class="layui-upload-img up-img">') }); } ,done: function(res){ //上传完毕 $('#demo2').append('<div style="float: left;"><img src="'+ res.msg +'" alt="'+ res.msg +'" class="layui-upload-img up-img" onclick="showeq(this)"><input type="hidden" name="image[]" value="'+res.msg+'" onclick="showinput(this)"><button onclick="del(this)">x</button></div>'); // $('#demo2').append(''); // $('#demo2').append(''); } }); }); function showeq(params) { var index = $("#demo2 img").index(params); console.log(index); } function showinput(params) { var index = $("#demo2 input").index(params); console.log(index); } function del(params) { var index = $("#demo2 button").index(params); $("#demo2 button").eq(index).remove(); $("#demo2 input").eq(index).remove(); $("#demo2 img").eq(index).remove(); // console.log(index); } </script> </html>php代码<?php $file = $_FILES["file"]; if ($file==null) { exit(json_encode(array('code'=>1, 'msg'=>'未上传图片'))); } // 获取文件后缀 $temp = explode(".", $_FILES["file"]["name"]); $extension = end($temp); // 判断文件是否合法 if(!in_array($extension, array("gif","jpeg","jpg","png"))){ exit(json_encode(array('code'=>1, 'msg'=>'上传图片不合法'))); } $info = move_uploaded_file($file['tmp_name'], "./uploads/".$file['name']); //移动文件到指定目录 建议文件名自己在修改一下 $img = '/uploads/'.$file['name']; exit(json_encode(array('code'=>0, 'msg'=>$img))); ?> -
php+layui写出图片上传 之前一直用框架加复制前辈的代码来完成图片上传,不清楚图片上传是怎么回事,这次写一个纯php+layui上传图片的例子文件上传链接首先前端代码<div class="layui-form-item"> <label class="layui-form-label">图片</label> <div class="layui-input-block"> <img id="pre_img" style="height: 30px;" /> <button class="layui-btn layui-btn-sm" onclick="return false;" id="upload_img"> <i class="layui-icon"></i>上传图片 </button> <input type="hidden" name="img" value=""> </div> </div> <script> layui.use(['upload','jquery'],function () { $ = layui.jquery; var upload = layui.upload; //执行实例 var uploadInst = upload.render({ elem: '#upload_img' //绑定元素 ,url: '/upload.php' //上传接口 ,accept:'images' ,done: function(res){ //上传完毕回调 $('#pre_img').attr('src',res.msg); $('input[name="img"]').val(res.msg); } ,error: function(){ //请求异常回调 } }); }); </script>当然你可以引入layui在线的样式和js <link rel="stylesheet" href="https://www.layuicdn.com/layui/css/layui.css"> <script src="https://www.layuicdn.com/layui/layui.js"></script>然后是php代码: <?php $file = $_FILES["file"]; if ($file==null) { exit(json_encode(array('code'=>1, 'msg'=>'未上传图片'))); } // 获取文件后缀 $temp = explode(".", $_FILES["file"]["name"]); $extension = end($temp); // 判断文件是否合法 if(!in_array($extension, array("gif","jpeg","jpg","png"))){ exit(json_encode(array('code'=>1, 'msg'=>'上传图片不合法'))); } $info = move_uploaded_file($file['tmp_name'], "./uploads/".$file['name']); //移动文件到指定目录 建议文件名自己在修改一下 $img = '/uploads/'.$file['name']; exit(json_encode(array('code'=>0, 'msg'=>$img))); ?>
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php发送post请求 public function curl_post($url , $data=array()){ $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); // POST数据 curl_setopt($ch, CURLOPT_POST, 1); // 把post的变量加上 curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data,JSON_UNESCAPED_UNICODE)); $output = curl_exec($ch); curl_close($ch); return $output; }
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