mysql - PHP login page doesn't redirect to the next page -


this question has answer here:

i writing login/register system first php project , facing problems in login.php. here login.php:

<?php    include("db.php");    session_start();    if(isset($_session['login_user'])){       header("location: welcome.php");    }     $error = '';    if (isset($_post['submit'])) {       if (empty($_post['username']) or empty($_post['password'])) {            $error = "please enter login details";      } else {          $username = mysqli_real_escape_string($conn, $_post['username']);         $password = md5($_post['password']);            $query = mysqli_prepare($conn, "select password workers user_name=?");         mysqli_stmt_bind_param($query,"s",$username);         mysqli_stmt_execute($query);         mysqli_stmt_bind_result($query,$pass);         if(mysqli_stmt_fetch($query)){             if ($password == $pass){                 header('location:welcome.php');                 $_session['login_user'] = $username;              }else {                 $error = "you typed wrong password";                 unset($username, $password);             }         }else{             $error = "user login doesn't exists";             unset($username,$password);         }      } } ?>

the problem after entering existing username/password refreshes page instead of heading welcome.php. checked incorrect username/password , displayed error expected, don't think problem in mysql queries. how can find problem code , explain why happened?

no code should executed after header sent.

$_session['login_user'] = $username; header('location:welcome.php'); exit();

well, , consider comments people took time post ;)


Comments

Post a Comment

Popular posts from this blog

javascript - Create a stacked percentage column -

i have collection of data : var data = [ {"p301a":"10","p301b":"7","p301c":"7","p301d":"3","p301e":"8","p301f":"8","p301g":"8","p301h":"8","p301i":"8","p301j":"8","p301k":"8","p301l":"8","p301m":"8","p301n":"8","p301o":"8","age":"31-40 years","profesion":"2","position":"2"}, {"p301a":"5","p301b":"4","p301c":"4","p301d":"4","p301e":"4","p301f":"4","p301g":"4","p301h":"4","p301i":"4","p301j":"4","p301k":"4...
Read more

Optimising Firebase database by automatically overwriting data -

in firebase app have following structure: posts latest all users can write posts > latest . want limit entries 20 posts save space in database. , posts beyond 20 unnecessary never shown on homepage. how can limit posts 20, when user writes posts > latest posts @ end drop off (be deleted) automatically? this sample should you. you need : const max_log_count = 20; exports.removeold = functions.database.ref('/posts/latest/{postid}').oncreate(event => { const parentref = event.data.ref.parent; return parentref.once('value').then(snapshot => { if (snapshot.numchildren() >= max_log_count) { let childcount = 0; const updates = {}; snapshot.foreach(function(child) { if (++childcount <= snapshot.numchildren() - max_log_count) { updates[child.key] = null; } }); // update parent. removes children. ...
Read more

javascript - Angular UI-Grid customTemplate directive causing rows to load slowly/? -

Image
each grid cell can have more 1 customtemplate loaded. have directive holds watcher on model_col_field listen cell updates on scroll when dom rows updated , recompile celltemplate . without watcher , $compile rows repeat on scroll, showing same set of rows. is there more angular way of approaching or way improve performance? relevant controller code: create gridoptions.data & gridoptions.columndefs : var customtemp = '<div ng-repeat="opt in grid.appscope.colvalueoptionsmodel" ng-init="tempstring=model_col_field.clazz+opt.key;"><comparison-directive dbo="model_col_field" attobj="opt" fff="grid.appscope.getattributetemplate(tempstring)" /></div>'; $scope.gridoptions.columndefs = [ { name:'yindex',pinnedleft:true,celltemplate: customtemp, displayname:'index'}, { name:'col1',celltemplate: customtemp}, { name:'col2',celltemplate: c...
Read more