php - log in system with sessions and mysqli done something wrong -


hello guys trying make simple log-in system school project, got work when didn't implement database. can see tried implement database don't work since can't make php tags @ start , end of echo's, anyway can me out? said worked when wrote random username , password, , didn't have database thing on it. 

  <?php     session_start();     include('../inc/dbconnection_inc.php');     $result=mysqli_query($dbconnection, 'select * users');     $row=mysqli_fetch_array($result);      $p=$_post['password'];     $u=$_post['username'];      if ($u==echo $row["username"] , $p==echo $row["password"]);     {         $_session['username'] = echo $row["username"];         header("location: admin.php");     }     else     {         header("location: ../index.php");     }

i not sure need echo there. according manual, echo returns nothing.

try removing echo's code, like

... if ($u === $row["username"] && $p === $row["password"]) {     $_session['username'] = $row["username"];     header("location: admin.php"); }

(also use && instead of and, cause)

besides code check first fetched row (i think you're aware of that?)


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