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1. astridca
   Member
   Posted 2 years ago #

   Hello all,

   I recently switched the theme with which I was working from default to classic. I edited some of the php/css in the template, and I kept getting funny messages when I did it. Now, all of a sudden, every time I try to log in, it gives me messages not unlike the ones that I kept receiving:

   Warning: Cannot modify header information - headers already sent by (output started at /home/astridca/public_html/wp-content/themes/classic/functions.php:19) in /home/astridca/public_html/wp-login.php on line 287

   Warning: Cannot modify header information - headers already sent by (output started at /home/astridca/public_html/wp-content/themes/classic/functions.php:19) in /home/astridca/public_html/wp-login.php on line 299

   Warning: Cannot modify header information - headers already sent by (output started at /home/astridca/public_html/wp-content/themes/classic/functions.php:19) in /home/astridca/public_html/wp-includes/pluggable.php on line 662

   Warning: Cannot modify header information - headers already sent by (output started at /home/astridca/public_html/wp-content/themes/classic/functions.php:19) in /home/astridca/public_html/wp-includes/pluggable.php on line 663

   Warning: Cannot modify header information - headers already sent by (output started at /home/astridca/public_html/wp-content/themes/classic/functions.php:19) in /home/astridca/public_html/wp-includes/pluggable.php on line 664

   Warning: Cannot modify header information - headers already sent by (output started at /home/astridca/public_html/wp-content/themes/classic/functions.php:19) in /home/astridca/public_html/wp-includes/pluggable.php on line 865

   I cannot access the blog to make changes. I tried going into my CPanel, into the functions.php file, but I still did not understand what is causing the issue at hand.

   Does anybody have an idea as to what the problem might be? Please help!

2. esmi
   Theme Diva & Forum Moderator
   Posted 2 years ago #

   http://codex.wordpress.org/Answers-Trouble_Shooting#Headers_already_sent
   http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F

3. Shane G
   Member
   Posted 2 years ago #

   Hi,

   1. Download the file mentioned in the error message.
   2. Open that file in a plain text editor
   3. Check that the very first characters are <?php
   4. Check that the very last characters are ?>
   5. Place the cursor between the ? and >
   6. Now press the DELETE key on your computer and keep that key pressed for at least 15 seconds.
   7. Now type > and
   8. Save without pressing any other key at all.

   Thanks,

   Shane G.

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