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session is displaying error after execution

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I am working on a code that will help me in creating and maintaining the session on webpage. When the customer visits the page the session must become active and increase the counter by one. I am able to do that. But, when the customer visits that page again, session_start() has been called again and it provided a warning. 


Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\index.php:13) in C:\xampp\htdocs\counter.php on line 2


so, what can I do to omit this warning



After visiting the page the session gets created and it does not updates further but it gives the above listed warning , looking for a quick answer .................

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It looks like you've already posted a topic about this issue.


You may want to reconsider your approach to this entire situation.


However, to answer your question, you can suppress warnings generated by a function by placing this @ symbol in front of it, e.g:


You can also handle this by modifying your error reporting levels.


In the long run, this is never the best practice. Just suppressing errors because of a poor design concept isn't recommended, ever.

Edited by 0xMatt
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the code is not displaying error , however ,  the condition is true and it is updating database, it is not considering it as false, here is the code for you.......



global $total;
$result = mysql_query("UPDATE visitors SET TOTAL='$total'") ;
the session creates successfully and it updates the value in database as soon as i refresh the page............i don't know why it is not halting when there is no error or warning in the code...........
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