php making query from mysql database getting error like Unknown column in 'where clause' [closed]

php making query from mysql database getting error like Unknown column in
'where clause' [closed]

References

Reference NO 1

http://stackoverflow.com/questions/15200419/php-making-query-from-mysql-database-getting-error-like-unknown-column-in-where

Reference NO 2

http://forums.phpfreaks.com/topic/269538-help-please-error-unknown-column-catagory-in-where-clause/

Reference NO 3

http://help.x-cart.com/index.php?title=X-Cart:SQL_errors

Reference NO 4

http://dev.mysql.com/doc/refman/5.5/en/apis-php-ref.mysql.html

Reference NO 5

http://forumarray.com/mysql-query-insert-unknown-column-test-in-where-clause-260929

Reference NO 6

http://www.databasejournal.com/features/mysql/article.php/3469351

Reference NO 7

http://forums.modx.com/thread/?thread=71900

Reference NO 8

https://drupal.org/node/1926712