练习一 ：用户注册带头像
显示页面
<!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> </head> <body> <h1>注册</h1> <form action="chuli.php" method="post" enctype="multipart/form-data"> <div>用户<input type="text" name="uid" /></div> <div>密码<input type="text" name="pwd" /></div> <div>姓名<input type="text" name="name" /></div> <div>性别<input type="text" name="sex" /></div> <div>生日<input type="text" name="birthday" /></div> <div>头像<input type="file" name="pic" /></div> <input type="submit" value="注册" /> </form> </body> </html>
处理页面
<?php var_dump($_FILES["pic"]); include ("../DBDA.class.php"); $db=new DBDA(); //控制上传格式和大小 if(($_FILES["pic"]["type"]=="image/jpeg"||$_FILES["pic"]["type"]=="image/png")&& $_FILES["pic"]["size"]<=100000) { //处理文件名 $filename="./img/".time().$_FILES["pic"]["name"]; //转编码格式 $filename=iconv("UTF-8","gb2312",$filename); //判断文件是否存在 if(!file_exists($filename)) { //上传（保存） move_uploaded_file($_FILES["pic"]["tmp_name"],$filename); } } //向表user添加一条数据 $uid=$_POST["uid"]; $pwd=$_POST["pwd"]; $name=$_POST["name"]; $sex=$_POST["sex"]; $birthday=$_POST["birthday"]; $url="/lianxi/wenjianshangchuan/".$filename; $sql="insert user values('','{$uid}','{$pwd}','{$name}','{$sex}','{$birthday}','{$url}')"; $result=$db->Query($sql,0); if ($result) { header("loaction:login.php"); } else { echo "添加失败"; }
练习二：文件下载
<!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> </head> <body> <?php include ("../DBDA.class.php"); $db=new DBDA(); $sql="select * from user "; $attr=$db->Query($sql); ?> <table border="1"> <tr> <td>上传者</td> <td>上传时间</td> <td>文件名</td> <td>操作</td> </tr> <?php foreach($attr as $v) { echo " <tr> <td>{$v[1]}</td> <td>{$v[5]}</td> <td>{$v[3]}</td> <td><a href='{$v[6]}'>下载</a></td> </tr> "; } ?>