php - i am trying to practice a simple session code in my house in xamp -


but how page not showing error message. not redirecting page want redirect after successful login. want login page redirected @ home page , show message , when logout link clicked page again come login page 

<?php         session_start();     error_reporting(e_all ^ e_notice);     ?>     <?php         if($_request["logout"]=='yes'){         unset($_session["login"]);         }     ?>     <html>         <body>             <form action="" method="post">                 <label>username</label><input type="text" name="unametxt" value="<?php echo $_post["unametxt"]; ?>" />                 <label>password</label><input type="password" value="<?php echo $_post["password"]; ?>" />                 <input type="submit" name="sbt" value="login">             </form>              <?php                 if(isset($_post["sbt"]))                 {                     if($_post["unametxt"]== "debarun" && $_post["password"]=="1234")                     {                         $_session["login"]="yes";                         $_session["uname"]=$_post["unametxt"];                         $_session["passwd"]=$_post["password"];                          header('location:home.php');                          }                     else                     {                         echo "please enter correct credentials";                         }                        }              ?>         </body>     </html>        , home page script:      <?php     session_start();      if(!isset($_session["login"])){         session_destroy();         header('location:login.php');      }      else{         echo "welcome".$_session["uname"]."<br/>"."your password is".$_session["passwd"];         }      ?>  <html>     <body>         <form action="" method="post">             <a href="login.php?logout=yes">logout</a>         </form>     </body> </html>  please

tell me why not working??

first thing $_post must letter case $_post forgot specify name="password" password input field take look

<?php         session_start();     error_reporting(e_all ^ e_notice);     ?>     <?php         if($_request["logout"]=='yes'){         unset($_session["login"]);         }     ?>     <html>         <body>             <form action="" method="post">                 <label>username</label><input type="text" name="unametxt" value="<?php echo $_post["unametxt"]; ?>" />                 <label>password</label><input type="password" name="password" value="<?php echo $_post["password"]; ?>" />                 <input type="submit" name="sbt" value="login">             </form>             <?php                 if(isset($_post["sbt"]))                 {                     echo $_post["password"];                     if($_post["unametxt"] == "debarun" , $_post["password"] == "1234")                     {                         $_session["login"]="yes";                         $_session["uname"]=$_post["unametxt"];                         $_session["passwd"]=$_post["password"];                          header('location:home.php');                          }                     else                     {                         echo "please enter correct credentials";                         }                        }              ?>         </body>     </html>

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