Cara untuk memuat naik avatar dalam php: [
Persekitaran pengendalian artikel ini: windows10 sistem, php 7. Komputer Thinkpad t480
Baru-baru ini saya perlu menggunakan fungsi muat naik avatar, jadi saya merekodkan proses pelaksanaan
Jika kita ingin melengkapkan fungsi muat naik avatar, kita perlu halaman php. Kami mentakrifkan halaman sebagai touxiang.php, dan halaman lain sebagai upload.php Mari lihat kod khusus:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <link href="bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet" type="text/css" /> <script src="bootstrap-3.3.7-dist/js/jquery-1.11.2.min.js"></script> <script src="bootstrap-3.3.7-dist/js/bootstrap.min.js"></script> <style type="text/css"> #yl{ width:200px; height:200px; background-image:url(img/avatar.png); background-size:200px 200px;} #file{ width:200px; height:200px; float:left; opacity:0;} .modal-content{ width:500px;} .kk{ margin-left:130px;} </style> </head> <body> <!-- 按钮触发模态框 --> <button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal"> 上传头像 </button> <!-- 模态框(Modal) --> <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-hidden="true"> × </button> <h4 class="modal-title" id="myModalLabel"> 上传头像 </h4> </div> <div class="modal-body"> <form id="sc" action="upload.php" method="post" enctype="multipart/form-data" target="shangchuan"> <input type="hidden" name="tp" value="" id="tp" /> <div id="yl" class="kk"> <input type="file" name="file" id="file" onchange="document.getElementById('sc').submit()" /> </div> </form> <iframe style="display:none" name="shangchuan" id="shangchuan"> </iframe> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">关闭 </button> <!--<button type="button" class="btn btn-primary"> 提交更改 </button>--> </div> </div><!-- /.modal-content --> </div><!-- /.modal --> </div> </body> <script type="text/javascript"> //回调函数,调用该方法传一个文件路径,该变背景图 function showimg(url) { var div = document.getElementById("yl"); div.style.backgroundImage = "url("+url+")"; document.getElementById("tp").value = url; } </script> </html>
<?php if($_FILES["file"]["error"]) { echo $_FILES["file"]["error"]; } else { if(($_FILES["file"]["type"]=="image/jpeg" || $_FILES["file"]["type"]=="image/png")&& $_FILES["file"]["size"]<1024000000) { $fname = "./img/".date("YmdHis").$_FILES["file"]["name"]; $filename = iconv("UTF-8","gb2312",$fname); if(file_exists($filename)) { echo "<script>alert('该文件已存在!');</script>"; } else { move_uploaded_file($_FILES["file"]["tmp_name"],$filename); unlink($_POST["tp"]); echo "<script>parent.showimg('{$fname}');</script>"; } } }
latihan php
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