Header Redirect after echo in PHP
In a PHP script, I have something like:
<?php
// lots of stuff
echo "some debug output or something";
header("Location: somepage.php");
?>On one server, that works perfectly fine, on another server I just setup, it won't work. I get the classic "Warning: Cannot modify header information..."
Do you know what setting in PHP or Apache that allows the header to change even after an echo? Is there a setting that suppresses echo and print statements until the end of execution?
pr0gr4mm3r posted this at 11:49 — 24th November 2009.
He has: 1,502 posts
Joined: Sep 2006
Using output buffering is a good way to ensure that no output gets in the way of sending headers, cookies, etc. At the beginning of the script, put
<?phpob_start()
?>
<?phpob_end_flush();
?>
teammatt3 posted this at 16:36 — 24th November 2009.
He has: 2,102 posts
Joined: Sep 2003
Genius!
I looked in the PHP.ini file for something about output buffering, and it was turned off on the second server. That fixed it.
It's probably best to leave output buffering off by default, and use it manually, but I have a lot of legacy scripts I don't want to fix
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