Original: PHP use session, to achieve user login and return to the clicked page (for example, TP for this article)

1, the following content is purely original, please choose carefully:

① Purpose: User Login timeout, session expires, click to jump to the login page, login success and then jump to the mouse click on the page.

② process: User Login---session expires---Click to jump to the login page---login successfully again---Jump back to the clicked page

③ idea: Using TP to bring the session by default, as long as our URL changes, so long will change the URL into the "same name" in the session variable;

User Login expires, session expires, click on any URL, the URL is re-stored in the session variable, login successfully, redirect to the URL can be

④ Code:

HTML page:

<script src= "{$TMPL}/js/ajax_user_login.js" ></script><form id= "User_login_form" Name= "User_login_ Form "action= ' {URL r=" user#do_login "} ' ><span class=" lh40 w100 mr20 "><i class=" color-red ">* </i> Account </span> <input name= "email" id= "email"  placeholder= "phone number/member name/email" type= "text"   class= "textbox"/ ><span class= "lh40 w100  mr20" ><i class= "color-red" >* </i> password </span><input  Name= "User_pwd" id= "user_pwd" placeholder= "Please enter password" type= "password" class= "textbox"/><input type= "button" value= "Login" name= "Submit_form" id= "Btn_do_login"/><input type= "hidden" value= "1" name= "Ajax"/></form>

　　

Js:

$ (document). Ready (function () {Do_login_user ();}); function Do_login_user () {var Ajaxurl = $ ("form[name= ' User_login_form ')"). attr ("action"); var query = $ ("form[name=" User_login_form '] "). Serialize (); $.ajax ({url:ajaxurl,datatype:" JSON ", Data:query,type:" POST ", Success:function ( Ajaxobj) {if (ajaxobj.status==1) {location.href = Ajaxobj.jump;   The URL of the session address that the PHP passed over});

PHP code (TP framework):

The core BaseModule.class.php:

Class Basemodule{public function __construct () {/       * system Determines whether session-xzz0419 is turned on by default */    if (!isset ($_session)) {    Session_Start ();    }        Set_gopreview ();     The current page URL is stored in session ();        /* Other code */}    

PHP's Common method:

function Get_current_url () {$url = $_server[' Request_uri '). ( Strpos ($_server[' Request_uri '), '? ')? ': '? '); $parse = Parse_url ($url); if (Isset ($parse [' query '])) { parse_str ($parse [' query '], $params); $url = $parse [' Path ']. Http_build_query ($params); } return $url;}

function Set_gopreview ()
{
$url = Get_current_url ();
Session ("Gopreview", $url);
}

function Get_gopreview ()
{
$gopreview =session ("Gopreview");

if (!isset ($gopreview) | | $gopreview = = "")
{
$gopreview = Session (' Before_login ') session (' Before_login '): URL ("index");
}
Session ("Before_login", null);
Session ("Gopreview", null);
return $gopreview;
}

PHP Processing Login Function code:

Public Function Do_login () {if (!$_post) {app_redirect (app_root. ") /");} foreach ($_post as $k = = $v) {$_post[$k] = Strim ($v);} $ajax = intval ($_request[' Ajax ')), $jump _url = Get_gopreview ();//Gets the clicked URL, has been stored in the session if ($ajax ==1) {$return [' status '] = 1; $return [' info '] = "Login Successful", $return [' data '] = $result [' msg ']; $return [' jump '] = $jump _url;ajax_return ($return);         }}

　　

Original: PHP use session, to achieve user login and return to the clicked page (for example, TP for this article)