Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /usr/www/users/mlfrqh/eventdb/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 /usr/www/users/mlfrqh/eventdb/include/dbconnection.php:9)
URLmlf.org.za/eventdb/MLFEvents7days_list.php?
Error file/usr/www/users/mlfrqh/eventdb/include/commonfunctions.php
Error line4061
SQL query

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