PHP之cookies小练习

 //5-1.php
 1 <?
 2     error_reporting(E_ALL ^ E_NOTICE); 
 3     if ($_COOKIE['username']!="") {
 4     echo "欢迎!"."<br/>";
 5     echo "用户名：".$_COOKIE['username']."<br/>";
 6     echo "电话：".$_COOKIE['phone']."<br/>";
 7     }
 8 
 9     else{
10 echo '
11 <html>
12 <head>
13     <title>用户注册</title>
14 </head>
15 <body>
16     <form method="post" action="5-2.php">
17     <p><font size="18">用户注册</p>
18     <table border="1" >
19     
20     <tr><td>用户名：</td>
21         <td><input name="xm" type="text"  size="12"></td>
22         <td><font color="red">*6-12个字符（数字字母下划线）</font></td>
23     </tr>
24 
25     <tr><td>密码：</td>
26         <td><input name="pwd1" type="password" size="16"></td>
27         <td><font color="red">*6-16个数字</font></td>
28     </tr>
29 
30     <tr><td>确认密码：</td>
31         <td><input name="pwd2" type="password" size="16"></td>
32         <td><font color="red">*必须和密码一致</font></td>
33     </tr>
34 
35     <tr><td>电话：</td>
36         <td><input name="phone" type="text" size="11"></td>
37         <td><font color="red">*11位数字，第一位为1</font></td>
38     </tr>
39 
40     <tr><td colspan="3"><input type="submit" value="注册">
41                         <input type="reset" value="取消">
42     </td>
43     </tr>
44 
45     </table>
46     </form>
47 </body>
48 </html>';}
49 ?>

 //5-2.php
 1 <?
 2     if( strlen($_POST["xm"])<6 || strlen($_POST["xm"])>12 ){
 3         echo "<script>alert('用户名长度错误');location.href='5-1.php';</script>";
 4     }
 5     else if ( strpos($_POST["xm"], "_")==false) {
 6         echo "<script>alert('用户名中应存在下划线');location.href='5-1.php';</script>";
 7     }
 8     else if ( preg_match('/[a-zA-Z]/', $_POST["xm"])==false) {
 9         echo "<script>alert('用户名中应存在英文字母');location.href='5-1.php';</script>";
10     }
11     else if ( preg_match('/[0-9]/', $_POST["xm"])==false) {
12         echo "<script>alert('用户名中应存在数字');location.href='5-1.php';</script>";
13     }
14     else if ( strlen($_POST["pwd1"])<6 || strlen($_POST["pwd1"])>16 ) {
15         echo "<script>alert('密码长度错误');location.href='5-1.php';</script>";
16     }
17     else if ($_POST["pwd1"]!=$_POST["pwd2"]) {
18         echo "<script>alert('两次密码不一致');location.href='5-1.php';</script>";
19     }
20     else if (strlen($_POST["phone"])!=11) {
21         echo "<script>alert('电话长度错误');location.href='5-1.php';</script>";
22     }
23     else if (substr($_POST["phone"],0,1)!="1") {
24         echo "<script>alert('电话第一位应该为1');location.href='5-1.php';</script>";
25     }
26     else if ( strpos($_POST["phone"], "_")) {
27         echo "<script>alert('电话中不应该存在下划线');location.href='5-1.php';</script>";
28     }
29     else if ( preg_match('/[a-zA-Z]/', $_POST["phone"])==true) {
30         echo "<script>alert('电话中不应该存在英文字母');location.href='5-1.php';</script>";
31     }
32     else{
33         setcookie("username",$_POST["xm"],time()+600);
34         setcookie("password",$_POST["pwd1"],time()+600);
35         setcookie("phone",$_POST["phone"],time()+600);
36         echo "注册成功"."<br/>";
37         echo "用户名：".$_POST["xm"]."<br/>";
38         echo "电话：".$_POST["phone"]."<br/>";
39     }
40 ?>