Cannot send session cookie / Cannot modify header information

[witch-of-germany]

Urgent help needed!

I was testing a new customer site (to be found at www.nicholasdesign.biz/NicholasDesign) yesterday. After adding a new customer, I received the message that the table ndzen_customers does not exist. That is true, because the database tables are ALL all called zen_ (ndzen_ was an earlier version). Searching for ndzen_ using the Developer Toolkit, I found it in ONLY TWO files: includes/classes/shopping-cart.php and functions/function-prices.php.

Thinking this was an easy thing to sort out, I changed the occurences of ndzen_ to zen_ . But the SH... started happening. On the shop site, I now have the messages:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /www/htdocs/w0088607/NicholasDesign/includes/classes/shopping_cart.php:2) in /www/htdocs/w0088607/NicholasDesign/includes/functions/sessions.php on line 108

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /www/htdocs/w0088607/NicholasDesign/includes/classes/shopping_cart.php:2) in /www/htdocs/w0088607/NicholasDesign/includes/functions/sessions.php on line 108

Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/w0088607/NicholasDesign/includes/classes/shopping_cart.php:2) in /www/htdocs/w0088607/NicholasDesign/includes/init_includes/init_templates.php on line 78

In addition, I cannot access http://www.nicholasdesign.biz/NicholasDesign/admin anymore, either because of similar problems. What should I do???

[witch-of-germany]

Done! The reason was an extra line in the file ...

[dhcernese]

I just transferred my site to a new hosting company and get these warnings now. Extra line where? Beginning or end? How could that happen? Did perhaps my hosting company screw up the edit when they changed configure.php? Any ideas?

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at C:\Inetpub\vhosts\sacredfiremag.com\httpdocs\shop\includes\configure.php:69) in C:\Inetpub\vhosts\sacredfiremag.com\httpdocs\shop\includes\functions\sessions.ph p on line 102

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\Inetpub\vhosts\sacredfiremag.com\httpdocs\shop\includes\configure.php:69) in C:\Inetpub\vhosts\sacredfiremag.com\httpdocs\shop\includes\functions\sessions.ph p on line 102

Warning: Cannot modify header information - headers already sent by (output started at C:\Inetpub\vhosts\sacredfiremag.com\httpdocs\shop\includes\configure.php:69) in C:\Inetpub\vhosts\sacredfiremag.com\httpdocs\shop\includes\init_includes\init_te mplates.php on line 78

[dhcernese]

Ah! It was a single blank line at the end of configure.php they edited.
Fixed.

[Ajeh]

Hate when that happens ... thanks for the update as that will surely be of help to others!

[eweb]

HELP.
I'm having the same issues but I have no spaces or blank lines in my files. Here are my error messages:


Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/muscleup/public_html/store/includes/configure.php:1) in /home/muscleup/public_html/store/includes/functions/sessions.php on line 108

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/muscleup/public_html/store/includes/configure.php:1) in /home/muscleup/public_html/store/includes/functions/sessions.php on line 108

Warning: Cannot modify header information - headers already sent by (output started at /home/muscleup/public_html/store/includes/configure.php:1) in /home/muscleup/public_html/store/includes/init_includes/init_templates.php on line 78


Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/muscleup/public_html/store/admin/includes/configure.php:1) in /home/muscleup/public_html/store/includes/functions/sessions.php on line 108

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/muscleup/public_html/store/admin/includes/configure.php:1) in /home/muscleup/public_html/store/includes/functions/sessions.php on line 108

Warning: Cannot modify header information - headers already sent by (output started at /home/muscleup/public_html/store/admin/includes/configure.php:1) in /home/muscleup/public_html/store/admin/includes/init_includes/init_templates.php on line 36

Warning: Cannot modify header information - headers already sent by (output started at /home/muscleup/public_html/store/admin/includes/configure.php:1) in /home/muscleup/public_html/store/admin/includes/functions/general.php on line 34

It all began when I turned ssl enabled to "true" - I saw the errors right away and switched them back to false...but the errors are still there! I'm completely lost as line 1 is perfect for both configure.php files.

SOMEBODY PLEASE HELP!

[DrByte]

The ":1" in the error message means that somewhere on line 1 there's a problem.
Perhaps there's an invisible character on that line?
Perhaps your editor+FTP program have uploaded the file as double-spaced, thus corrupting the contents.
If you're editing the file directly on the server, be aware that many server-side editors will bust the files and cause similar problems. Best to edit on a PC and upload via FTP.

[Graphicman]

Hi i'm having a similar problem can anybody help me with this it was all ok then suddenly this appeared, i don't think it was anything i did, but if it was i would sure like to know so that i can avoid it in the future.

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/media/public_html/includes/configure.php:137) in /home/media/public_html/includes/functions/sessions.php on line 108

Warning: Cannot modify header information - headers already sent by (output started at /home/media/public_html/includes/configure.php:137) in /home/media/public_html/includes/init_includes/init_templates.php on line 78

Thanks in advance

[DrByte]

headers already sent (output started at /home/media/public_html/includes/configure.php:137)

https://www.zen-cart.com/tutorials/index.php?article=87

[devlyn]

Just had the same problem and fixed it by copy/pasting the file contents of admin/includes/configure.php into a new file, then saving over the old one and uploading. Must have been a bug in my text editor.