PHP Cookie Login Verification Code _php Tutorial

Provide an automatic cookie login method, the user can choose to save the process during login days and months, we just came in the page to judge the KO.

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Login

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@mysql_connect ("localhost", "root", "1981427")//Select the database before you need to connect to the database server 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 '); $cookie = $_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"; } ?>

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< p>!--? php session_start (); if (isset ($_cookie[' username ')) { @mysql_connect ("localhost", "root", "1981427")//database server needs to be connected 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 unavailable"); Get session $username = $_cookie[' username '); The Execute SQL statement obtains the value of Userflag $query = @mysql_query ("Select Userflag from Users" . " where username = ' $username ') or Die ("SQL statement execution failed"); $row = Mysql_fetch_array ($query); //Get user rights information $flag = $row [' Userflag ']; Output different welcome information according to the value of Userflag if ($flag = = 1) echo "Welcome administrator". $_session[' username ']. " Login System "; if ($flag = = 0) echo "Welcome user". $_session[' username ']. " Login System "; echo "Logout"; } Else { echo "You do not have permission to access this page"; } ?

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Setcookie ("username"); echo "Logout success"; ?>

http://www.bkjia.com/PHPjc/631700.html www.bkjia.com true http://www.bkjia.com/PHPjc/631700.html techarticle provide an automatic cookie login method, the user can choose to save the process during login days and months, we just came in the page to judge the KO. Code to copy code as follows ...

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