Warning session start Cannot send session cookie - headers already sent by output started at

Question

The following warning comes in login page  Its working in localhost but not in remote host  Warning  session start    function session-start   Cannot send session cookie - headers already sent by  output started at  on line 8   Warning  session start    function session-start   Cannot send session cache limiter - headers already sent  output started at on line 8     index php   lt  php session start    if isset   SESSION  usr     amp  amp  isset   SESSION  pswd      header  Location  content php       gt   lt body gt   lt center gt   lt form method  post  action  login php  gt   lt      in this example I link it with login php to check the password  amp  username    gt   lt table gt   lt tr gt  lt td gt Username  lt  td gt  lt td gt  lt input type  text  name  usr  gt  lt  td gt  lt  tr gt   lt tr gt  lt td gt Password  lt  td gt  lt td gt  lt input type  password  name  pswd  gt  lt  td gt   lt  tr gt   lt tr gt  lt td gt  lt input type  submit  name  login  value  Login  gt  lt  td gt   lt td gt  lt input type  reset  name  reset  value  Reset  gt  lt  td gt  lt  tr gt   lt  table gt   lt  form gt   lt  center gt   lt  body gt      content php   lt body gt   lt a href  resumedownload php  gt Click here to Download to Resume lt  a gt   lt  php session start    if  isset   SESSION  usr        isset   SESSION  pswd       header  Location  index php     include  logoff php     gt   lt  body gt    login php   lt body gt   lt  php session start    if   REQUEST  usr     suman trytek   amp  amp    REQUEST  pswd     solutions      SESSION  usr      suman trytek     SESSION  pswd      solutions   header  Location  content php      else  header  Location  index php        gt   lt  body gt

User · Answer

You cannot session start    when your buffer has already been partly sent   This mean  if your script already sent informations  something you want  or an error report  to the client  session start   will fail

User · Answer

session start   must be at the top of your source  no html or other output befor  your can only send session start   one time by this way if session status    PHP SESSION ACTIVE  session start

User · Answer

Move the session start    to top of the page always    lt  php  ob start    session start      gt

[php] Warning: session_start(): Cannot send session cookie - headers already sent by (output started at

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