PHP session Cannot get value

Write a session to pass the value of the small demo, the results in the second page does not get the value of the normal.

untitled-4.php

  
   
  
   使用-注册
  
   ";}if(!isset($_SESSION["usernmae"])){    $_SESSION["username"]=$user;     echo  "超链接测试按钮";}?>

untitled-4.php

  
   
  
   使用-第三页验证表单
  
   请问是我传session的值有问题吗？为什么获取不到

Reply content:

Write a session to pass the value of the small demo, the results in the second page does not get the value of the normal.

untitled-4.php

  
   
  
   使用-注册
  
   ";}if(!isset($_SESSION["usernmae"])){    $_SESSION["username"]=$user;     echo  "超链接测试按钮";}?>

untitled-4.php

  
   
  
   使用-第三页验证表单
  
   请问是我传session的值有问题吗？为什么获取不到

The first page of 24 rows if(!isset($_SESSION["usernmae"])) should be usernmae username

The second page 13 row echo "欢迎你，".$_SESSION["usernmae"]."，进入第三页"; in Usernmae should be username

Session_Start ()?

You var_dump look.

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