The php tutorial describes how to register a user and set it to the logon status. The following example shows how to save the data submitted in the form to the mysql tutorial database without the function of automatically logging on after user registration, instance 2 implements this approach.
<Html>
<Body>
<? Php$ Self = $ _ SERVER ['php _ SELF '];
$ Firstname = $ _ POST ['firstname'];
$ Lastname = $ _ POST ['lastname'];
$ Username = $ _ POST ['username'];
$ Password = $ _ POST ['Password'];If ((! $ Firstname) or (! $ Lastname) or (! $ Username) or (! $ Password ))
{
$ Form = "Please enter all new user details ...";
$ Form. = "<form action =" $ self "";
$ Form. = "method =" post "> First Name :";
$ Form. = "<input type =" text "name =" firstname "";
$ Form. = "value =" $ firstname "> <br> Last Name :";
$ Form. = "<input type =" text "name =" lastname "";
$ Form. = "value =" $ lastname "> <br> User Name :";
$ Form. = "<input type =" text "name =" username "";
$ Form. = "value =" $ username "> <br> Password: & nbsp ;";
$ Form. = "<input type =" text "name =" password "";
$ Form. = "value =" $ password "> <br> ";
$ Form. = "<input type =" submit "value =" Submit "> ";
$ Form. = "</form> ";
Echo ($ form );
}
Else
{
$ Conn = @ mysql_connect ("localhost", "root", "") or die ("cocould not connect to MySQL ");
$ Db = @ mysql_select_db ("my_database", $ conn) or die ("cocould not select database ");
$ SQL = "insert into users (first_name, last_name, user_name, password) values (" $ firstname "," $ lastname "," $ username ", password ("$ password "))";
$ Result = @ mysql_query ($ SQL, $ conn) or die ("cocould not execute query ");
If ($ result ){
Echo ("New user $ username added ");
}
}
?>
</Body>
The following instance is more detailed. After the user registers and sets the user as the login status, this implementation uses setcookie to save the user login information
Create table user_info (
User_id char (18 ),
Fname char (15 ),
Email char (35 ));
// File: index. php
<?
$ Form ="
<Form action = "index. php" method = "post">
<Input type = "hidden" name = "seenform" value = "y">
Your first name? : <Br>
<Input type = "text" name = "fname" value = ""> <br>
Your email? : <Br>
<Input type = "text" name = "email" value = ""> <br>
<Input type = "submit" value = "Register! ">
</Form>
";
If ((! Isset ($ seenform ))&&(! Isset ($ userid ))):
Print $ form;
Elseif (isset ($ seenform )&&(! Isset ($ userid ))):
$ Uniq_id = uniqid (rand ());
@ Mysql_pconnect ("localhost", "root", "") or die ("cocould not connect to MySQL server! ");
@ Mysql_select_db ("user") or die ("cocould not select user database! ");
$ Query = "insert into user_info VALUES ('$ uniq_id', '$ fname',' $ email ')";
$ Result = mysql_query ($ query) or die ("cocould not insert user information! ");
Setcookie ("userid", $ uniq_id, time () + 2592000 );Print "Congratulations $ fname! You are now registered !. ";
Elseif (isset ($ userid )):
@ Mysql_pconnect ("localhost", "root", "") or die ("cocould not connect to MySQL server! ");
@ Mysql_select_db ("user") or die ("cocould not select user database! ");
$ Query = "SELECT * FROM user_info WHERE user_id = '$ userid '";
$ Result = mysql_query ($ query) or die ("cocould not extract user information! ");$ Row = mysql_fetch_array ($ result );
Print "Hi". $ row ["fname"]. ", <br> ";
Print "Your email address is". $ row ["email"];Endif;
?>
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