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<b>Notice</b>:  Undefined variable: db in <b>/home/elshaikh/public_html/v02/codes/functions.php</b> on line <b>120</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function query() on null in /home/elshaikh/public_html/v02/codes/functions.php:120
Stack trace:
#0 /home/elshaikh/public_html/v02/subject/class_page.php(2): getSubjectByID()
#1 {main}
  thrown in <b>/home/elshaikh/public_html/v02/codes/functions.php</b> on line <b>120</b><br />