PHP Cookie Login Verification Tips _php Tutorial

The purpose of building a website is the integrity of the function. One of these features is the implementation of user login verification. Let's give you a detailed introduction to the

Sample PHP Cookie Login Verification code:

2. < html>
4. < head>
6. < title>Login< /title>
8. < meta http-equiv="Content-type"
   content="text/html; charset=gb2312 ">
10. < /head >
12. < body>
14. < form name = Form1 " method = Post "
    action = "login.php" ;
16. < table width = "border" = "0" align="center"
    cellpadding="2" cellspacing="2" >
18. < tr>
20. < TD width = "150" > < Div align = "right" span class= "tag" > ;
    user name: < /div > < /td ;
22. < td width="Max">< input type="text"
    name="username">< /td >
24. < /tr >
26. < tr>
28. < td>< div align ="right"> Password:< /div> < /td>
30. < td>< input type= "password" name="passcode"> < /td >
32. < /tr >
34. < tr>
36. < TD > < Div align = Right " ; Cookie Save time: < /div > < /td ;
38. < td>< Select name ="Cookie " id="cookie">
40. < option value="0" selected> Browser Process < /option>
42. < option value="1"> save 1 days < /option >
44. < option value="2"> Save 30 days < /option >
46. < option value="3"> Save 365 days < /option >
48. < /select >< /td >
50. < /tr >
52. < /table >
54. < p align="center">
56. < input type = "Submit" Name = "Submit" value="Submit">
58. < input type = "reset" name = "Reset" value="Reset">
60. < / P >
62. < /form >
64. < /body >
66. < /html >

 
 

  
  

  
< ? PHP
  
  

  
@mysql_connect ("localhost", "root", "1981427")
You need to connect to the database server before selecting a database
  
  

  
Or Die ("Database server Connection Failed");
  
  

  
@mysql_select_db ("test")//Select Database MyDB
  
  

  
Or Die ("database does not exist or is not available");
  
  

  
Get user input
  
  

  
$ username = $_post[' username ']; 
  
  

  
$ Passcode = $_post[' passcode ']; 
  
  

  
$ Cookies = $_post[' Cookie ']; 
  
  

  
Execute SQL statement
  
  

  
$ Query = @mysql_query ("Select Username,
Userflag from Users "
  
  

  
." Where  username  =  ' $username ' and
Passcode  =  ' $passcode ' ") 
  
  

  
Or Die ("SQL statement execution failed");
  
  

  
Determine if the user exists, the password is correct
  
  

  
if ($row  =  mysql_fetch_array($query))
  
  

  
{
  
  

  
if ($row [' userflag '] = = 1 or $row [' userflag '] = = 0)
Determine if user rights information is valid
  
  

  
{
  
  

  
Switch ($cookie)//Set cookie save time according to user's choice
  
  

  
{
  
  

  
Case 0://Save cookie for browser process
  
  

  
Setcookie ("username", $row [' username ']);
  
  

  
Break
  
  

  
Case 1://Save 1 days
  
  

  
Setcookie ("username", $row [' username '],
Time () +24*60*60);
  
  

  
Break
  
  

  
Case 2://Save 30 days
  
  

  
Setcookie ("username", $row [' username '],
Time () +30*24*60*60);
  
  

  
Break
  
  

  
Case 3://Save 365 Days
  
  

  
Setcookie ("username", $row [' username '],
Time () +365*24*60*60);
  
  

  
Break
  
  

  
}
  
  

  
Header ("location:main.php");
Auto Jump to main.php
  
  

  
}
  
  

  
Else
  
  

  
{
  
  

  
echo "User rights information is incorrect";
  
  

  
}
  
  

  
}
  
  

  
Else
  
  

  
{
  
  

  
echo "User name or password error";
  
  

  
}
  
  

  
?>  
 
 

PHP Cookie Login Verification code example:

 
 

  
  

  
< ? PHP
  
  

  
Session_Start ();
  
  

  
if (isset ($_cookie[' username '))
  
  

  
{
  
  

  
@mysql_connect ("localhost", "root", "1981427")
  
  

  
You need to connect to the database server before selecting a database
  
  

  
Or Die ("Database server Connection Failed");
  
  

  
@mysql_select_db ("test")//Select Database MyDB
  
  

  
Or Die ("database does not exist or is not available");
  
  

  
Get session
  
  

  
$ username = $_cookie[' username ']; 
  
  

  
Execute SQL statement to get Userflag value
  
  

  
$ Query = @mysql_query ("Select
Userflag from Users "
  
  

  
." Where  username  =  ' $username '")
  
  

  
Or Die ("SQL statement execution failed");
  
  

  
$ Row  =  Mysql_fetch_array ($query); 
  
  

  
Obtaining User rights Information
  
  

  
$ Flag = $row [' Userflag ']; 
  
  

  
Output a different welcome message based on the value of Userflag
  
  

  
if ($flag  = = 1)
  
  

  
echo "Welcome administrator". $_session[' username '
." Login System ";
  
  

  
if ($flag  = = 0)
  
  

  
echo "Welcome user". $_session[' username '
." Login System ";
  
  

  
echo " <    a  href="logout.php" 
href = "logout.php" > Logout <  /A > "; 
  
  

  
}
  
  

  
Else
  
  

  
{
  
  

  
echo "You do not have permission to access this page";
  
  

  
}
  
  

  
?>  
  
  

  
< ? PHP
  
  

  
Setcookie ("username");
  
  

  
echo "Logout success";
  
  

  
?>  
 
 

The implementation of the above-mentioned timely PHP cookie login verification.

http://www.bkjia.com/PHPjc/445946.html www.bkjia.com true http://www.bkjia.com/PHPjc/445946.html techarticle The purpose of building a website is the integrity of the function. One of these features is the implementation of user login verification. Below we will give you a detailed description of the PHP cookie login verification Code ...

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