Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /hermes/walnaweb04a/b320/pow.mobiles/htdocs/mhs_online/include/dbconnection.php on line 9

php error happened

Technical information
Error type2
Error descriptionCannot modify header information - headers already sent by (output started at /hermes/walnaweb04a/b320/pow.mobiles/htdocs/mhs_online/include/dbconnection.php:9)
Error file/hermes/walnaweb04a/b320/pow.mobiles/htdocs/mhs_online/include/commonfunctions.php
Error line3957
SQL query

More info

Warning: Unknown: open(/var/php_sessions/sess_72836b863bf9a0bbd5e042fc0024c1d2, O_RDWR) failed: No such file or directory (2) in Unknown on line 0 Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/php_sessions) in Unknown on line 0