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mssql_connect was removed from Php http://php.net/manual/en/function.mssql-connect.php PDO is how you will want to do it. http://php.net/manual/en/book.pdo.php

here's a list of things i saw in the posted code - 1. don't put php variables inside of double-quotes if they are the only thing in the string. 2, don't use or die() for error handling. use exceptions and in most cases let php catch the exception. note: your use of mysqli_error(...) in the connection code won't work because there's no connection to use. 3. don't unconditionally output database errors onto a web page (this will go away when you get rid of the or die() logic.) 4. don't run queries inside of loops. learn to do JOIN queries. 5. if your code is tabbed that far over because it is located inside your html document, you need to put the php code that's responsible for getting/producing data before the start of your html document, fetch the data into appropriately named php variable(s), then use those variable(s) in the html document. 6. handling the negative/failure case is usually shorter then the positive/successful case. if you invert the logic tests and handle the negative/failure condition first, your code will be clearer. you won't have logic for the negative/failure case 10's/100's of lines later in the code. 7. don't use loops to fetch what will be at most one row of data. just directly fetch the single row of data. 8. don't put static calculations inside of loops. the various date values shouldn't change during one report (where they are at now, they will if the request spans midnight.) put them before the start of the loop. 9. don't put quotes around numbers. 10. don't selected things that are not used and don't create variables that are not used (given the amount of code, the cases i saw of this may not be accurate.) 11. if you are looping to do something (should go away with JOINed queries), don't evaluate count() statements in the loop. determine the loop count, once, before the start of the loop. 12. doing some of these things will simplify variable naming. you won't have to think up unique names for variables because you will only have one instance in the code. 13. the $AffID is probably from external/unknown data. you should NOT put eternal/unknown data directly into an sql query statement. use a prepared query, with a place-holder for each data value, then supply the data when the query gets executed. switching to the much simpler php PDO extension will make using prepared queries easy compared to the php mysqli extension.