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error when departing a webpage

Maybe someone can tell me what this error means.

Deprecated: Function session_unregister() is deprecated in /home/noname/public_html/admin/library/functions.php on line 81

Warning: Cannot modify header information - headers already sent by (output started at /home/noname/public_html/admin/library/functions.php:81) in /home/name/public_html/admin/library/functions.php on line 84
1 Solution
Terry WoodsIT GuruCommented:
For the first error, you should be able to just change occurrences of:




The second error is caused by some output being sent to the browser before the header function is called (it may be because of the first error?). Sometimes it's caused by an empty line or space character before an opening PHP tag in a file being called before the header function is called.
starviewAuthor Commented:
Thank you
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