PHP Login Scripts

**exdol** · Oct 9, 2003, 03:42 PM

Does anyone have a reusable PHP Login scripts to spear. I changed Intranet server operating system from windows NT to Linux Redhat - I use to authenticate using an ASP script but as you know that willnot work here.

Help Please.

Thanx

**CKnight** · Oct 9, 2003, 03:56 PM

Code:

&lt;?
session_unregister(&quot;valid_user&quot;);
session_unregister(&quot;valid_id&quot;);
$valid_user = &quot;&quot;;
$valid_id = &quot;&quot;; 
?&gt;

&lt;CENTER&gt;Please select your username and enter your password then click &lt;I&gt;&lt;B&gt;&quot;Enter&quot;&lt;/B&gt;&lt;/I&gt;&lt;/CENTER&gt;

&lt;TABLE WIDTH=&quot;100%&quot;&gt;
&nbsp;&nbsp;&nbsp;&lt;TR&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;TD WIDTH=&quot;100%&quot; HEIGHT=300 ALIGN=&quot;Center&quot; VALIGN=&quot;Center&quot;&gt;
&lt;FORM ACTION=&quot;&lt;?=$PHP_SELF?&gt;&quot; METHOD=&quot;Post&quot;&gt;
&lt;TABLE BGCOLOR=&quot;#CCCCFF&quot;&gt;
&nbsp;&nbsp;&nbsp;&lt;TR&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;TD&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;B&gt;Username:&lt;B&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/TD&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;TD&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;SELECT NAME=&quot;Username&quot;&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;OPTION VALUE=&quot;&quot;&gt;&lt;/OPTION&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;?
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$query = &quot;select * from users&quot;;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$result = mysql_query($query);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;?&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;?
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;mysql_data_seek($result, 0);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while ($rows=mysql_fetch_row($result))
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$name = $rows[1];
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$value = $rows[0] . &quot;|&quot; . $name;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo &quot;&lt;OPTION VALUE=&#039;&quot; . $value . &quot;&#039;&gt;&quot; . $name . &quot;&lt;/OPTION&gt;\n&quot;;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;?&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/SELECT&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/TD&gt;
&nbsp;&nbsp;&nbsp;&lt;/TR&gt;

&nbsp;&nbsp;&nbsp;&lt;TR&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;TD&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;B&gt;Password:&lt;/B&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/TD&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;TD&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;INPUT TYPE=&quot;Password&quot; NAME=&quot;Password&quot;&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/TD&gt;
&nbsp;&nbsp;&nbsp;&lt;/TR&gt;
&nbsp;&nbsp;&nbsp;&lt;TR&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;TD COLSPAN=2 ALIGN=&quot;Center&quot;&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;INPUT TYPE=&quot;Submit&quot; NAME=&quot;Enter&quot; VALUE=&quot;Enter&quot;&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/TD&gt;
&nbsp;&nbsp;&nbsp;&lt;/TR&gt;
&lt;/TABLE&gt;
&lt;/FORM&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/TD&gt;
&nbsp;&nbsp;&nbsp;&lt;/TR&gt;
&lt;/TABLE&gt;


&lt;CENTER&gt;If you have problems logging in please contact your &lt;A HREF=&quot;mailto:admin@yourcompany.com&quot;&gt;System Administrator&lt;/A&gt;&lt;/CENTER&gt;

&lt;?
if ($Username){
&nbsp;&nbsp;&nbsp;$info = explode (&quot;|&quot;, $Username);

&nbsp;&nbsp;&nbsp;$id = $info[0];
&nbsp;&nbsp;&nbsp;$valid_id = $id;
&nbsp;&nbsp;&nbsp;$valid_user = $info[1];
&nbsp;&nbsp;&nbsp;$id = &quot;&#039;&quot; . $id . &quot;&#039;&quot;;
&nbsp;&nbsp;&nbsp;If ($Password == &quot;&quot;) $Password = &quot;null&quot;; else $Password = &quot;&#039;&quot; . $Password . &quot;&#039;&quot;;

&nbsp;&nbsp;&nbsp;$query = &quot;select count(*) from users where user_id = $id and password = $Password&quot;;
&nbsp;&nbsp;&nbsp;$result = mysql_query($query) or die(mysql_error());


&nbsp;&nbsp;&nbsp;$rows = mysql_fetch_array($result);

&nbsp;&nbsp;&nbsp;if ($rows[0] == 1)
&nbsp;&nbsp;&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;session_register(&quot;valid_user&quot;);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;session_register(&quot;valid_id&quot;);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;?&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;SCRIPT LANGUAGE=&quot;Javascript&quot;&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;window.location = &quot;menu.php&quot;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;/SCRIPT&gt;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;?
&nbsp;&nbsp;&nbsp;}
}
?&gt;

The above code is a butchered version of a basic login script I made for use in my office. It assumes a tabke called users with filelds for name, id, password, etc. (You'd probably use a hash for your passwords.)

Upon entering a correct password, it stores values in two session variables: valid_user and valid_id. These are used for displaying the user currently logged in and to log user actions respectively.

**exdol** · Oct 9, 2003, 04:36 PM

Thanks much, will definetly try this and let you know.

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