標籤：data- w3c ima date foo oat ansi multipart gb2312
最近在做php第二階段的項目，需要用到頭像上傳的功能
我們要完成頭像上傳功能，一共要寫兩個php頁面，第一個頁面我們叫做touxiang.php，第二個頁面我們叫做upload.php
1.touxiang.php
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>無標題文檔</title> 6 7 <link href="bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet" type="text/css" /> 8 <script src="bootstrap-3.3.7-dist/js/jquery-1.11.2.min.js"></script> 9 <script src="bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>10 11 <style type="text/css">12 #yl{ width:200px; height:200px; background-image:url(img/avatar.png); background-size:200px 200px;}13 #file{ width:200px; height:200px; float:left; opacity:0;}14 .modal-content{ width:500px;}15 .kk{ margin-left:130px;}16 </style>17 18 </head>19 20 <body>21 22 23 24 <!-- 按鈕觸發模態框 -->25 <button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">26 上傳頭像27 </button>28 <!-- 模態框（Modal） -->29 <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">30 <div class="modal-dialog">31 <div class="modal-content">32 <div class="modal-header">33 <button type="button" class="close" data-dismiss="modal" aria-hidden="true">34 ×35 </button>36 <h4 class="modal-title" id="myModalLabel">37 上傳頭像38 </h4>39 </div>40 <div class="modal-body">41 <form id="sc" action="upload.php" method="post" enctype="multipart/form-data" target="shangchuan">42 43 <input type="hidden" name="tp" value="" id="tp" />44 45 <div id="yl" class="kk">46 <input type="file" name="file" id="file" onchange="document.getElementById(‘sc‘).submit()" />47 </div>48 49 50 51 </form>52 53 <iframe style="display:none" name="shangchuan" id="shangchuan">54 </iframe>55 56 </div>57 <div class="modal-footer">58 <button type="button" class="btn btn-default" data-dismiss="modal">關閉59 </button>60 <!--<button type="button" class="btn btn-primary">61 提交更改62 </button>-->63 64 </div>65 </div><!-- /.modal-content -->66 </div><!-- /.modal -->67 </div>68 69 70 </body>71 72 <script type="text/javascript">73 74 //回呼函數,調用該方法傳一個檔案路徑，該變背景圖75 function showimg(url)76 {77 var div = document.getElementById("yl");78 div.style.backgroundImage = "url("+url+")";79 80 document.getElementById("tp").value = url;81 }82 83 </script>84 85 </html>
在這個頁面我們需要引入一個模態框和bootstrap.min.css，jquery-1.11.2.min.js，bootstrap.min.js三個檔案
2.upload.php
1 <?php 2 3 if($_FILES["file"]["error"]) 4 { 5 echo $_FILES["file"]["error"]; 6 } 7 else 8 { 9 if(($_FILES["file"]["type"]=="image/jpeg" || $_FILES["file"]["type"]=="image/png")&& $_FILES["file"]["size"]<1024000000)10 {11 $fname = "./img/".date("YmdHis").$_FILES["file"]["name"]; 12 13 $filename = iconv("UTF-8","gb2312",$fname);14 15 if(file_exists($filename))16 {17 echo "<script>alert(‘該檔案已存在！‘);</script>";18 }19 else20 {21 move_uploaded_file($_FILES["file"]["tmp_name"],$filename);22 23 unlink($_POST["tp"]);24 25 echo "<script>parent.showimg(‘{$fname}‘);</script>";26 }27 28 }29 }
網頁顯示效果如下：
好了，這樣一個簡單的頭像上傳就做好了，趕快試試吧！
php實現頭像預覽上傳功能
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