Headers already sent error in PHP

Question

I'm trying to redirect a user to a different page if a session hasn't been set.

<?php
ob_start();
if(!isset($_SESSION["username"]) )
{
header('Location: bye.php');
}
ob_end_flush();
?>
<div class="tomato">
<p id="NEW"><font size=30px">NEW</font></p>
<hr color="lightblue"><br /><br /><br />
<form name="thisnewbox" action="fire.php" method="post">
<input type="text" placeholder="firstname" name="fname" id="fname" required /><br /><br /><br /><br />
<input type="text" placeholder="lastname" name="lname" id="lname" required/><br /><br /><br /><br />
<hr color="lightblue"><br/>
<input type="submit" class="lgb" value="Send" /> <button type="reset" value="Reset" class="lgb">Reset</button>
</form>
</div><br><br>

I keep getting header already sent error. I've tried every solution I could find on google and this website.

added ob_start();
saved as utf-8 without BOM
removed all spaces
used meta location as well

Please help me I know this question has been asked a lot but I am stumped!

Is this page `require`d from another page? (And if not, you should add a proper HTML structure.) — Ry-, Sep 12 '14 at 01:40
required is for the textbox meaning you can't go to the other page with a blank textbox. — user4013633, Sep 12 '14 at 01:43
If you don't understand why `ob_start()?;` doesn't work after previous HTML output, or can't restructure your output logic, use the `` or JS workaround. — mario, Sep 12 '14 at 01:49
@mario please elaborate about . I have no idea what you mean. Sorry. — user4013633, Sep 12 '14 at 01:50

score 0 · Answer 1 · answered Sep 12 '14 at 01:42

0

Add exit; under the line header('Location: bye.php');

header('Location: bye.php');
exit;

answered Sep 12 '14 at 01:42

Bokul

295
1
9

that did not work. But thanks for your input. – user4013633 Sep 12 '14 at 01:49

Headers already sent error in PHP

1 Answers1