Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/foreiimd/public_html/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 /home/foreiimd/public_html/include/dbconnection.php:9)
URLwww.foreignlanguageplacements.com/jobsjobs_list.php?ctlSearchFor=German&srchOptShowStatus=0&ctrlTypeComboStatus=0&srchWinShowStatus=0&a=integrated&id=1&criteria=and&value11=German&field1=Category&option1=Contains
Error file/home/foreiimd/public_html/include/commonfunctions.php
Error line3983
SQL query

More info