php - Using multiple select boxes to filter MySQL data -



php - Using multiple select boxes to filter MySQL data -

i have table echo'd php displays data. i'm trying info filter based on dropdowns , submit button. each individual dropdown query works 100%...just on own without elseif. i.e. if test them 1 1 , comment out others filter works, not when they're uncommented. here's code:

if ($_post['racename']!="select race") { $racename = mysqli_real_escape_string($mysqli, $_post["racename"]); $filter = "select a.membershipid, a.firstname, a.surname, t.raceid, t.time, r.raceid, r.racename, r.distance, r.clubyear athlete inner bring together time t on a.membershipid=t.membershipid inner bring together race r on t.raceid=r.raceid r.racename= '$racename' order a.surname"; } elseif ($_post['athlete']!="select athlete") { $athlete = mysqli_real_escape_string($mysqli, $_post["athlete"]); $firstword = explode(' ',trim($athlete)); $firstname = $firstword[0]; $lastword = explode(' ', $athlete); $surname = array_pop($lastword); $filter = "select a.membershipid, a.firstname, a.surname, t.raceid, t.time, r.raceid, r.racename, r.distance, r.clubyear athlete inner bring together time t on a.membershipid=t.membershipid inner bring together race r on t.raceid=r.raceid a.firstname= '$firstname' , a.surname = '$surname' order a.surname"; } elseif ($_post['distance']!="select distance") { $distance = mysqli_real_escape_string($mysqli, $_post["distance"]); $filter = "select a.membershipid, a.firstname, a.surname, t.raceid, t.time, r.raceid, r.racename, r.distance, r.clubyear athlete inner bring together time t on a.membershipid=t.membershipid inner bring together race r on t.raceid=r.raceid r.distance= '$distance' order a.surname"; } elseif ($_post['clubyear']!="select club year") { $clubyear = mysqli_real_escape_string($mysqli, $_post["clubyear"]); $filter = "select a.membershipid, a.firstname, a.surname, t.raceid, t.time, r.raceid, r.racename, r.distance, r.clubyear athlete inner bring together time t on a.membershipid=t.membershipid inner bring together race r on t.raceid=r.raceid r.clubyear= '$clubyear' order a.surname"; } else { $filter = "select a.membershipid, a.firstname, a.surname, t.raceid, t.time, r.raceid, r.racename, r.distance, r.clubyear athlete inner bring together time t on a.membershipid=t.membershipid inner bring together race r on t.raceid=r.raceid order a.surname"; } $result = $mysqli->query($filter);

as can see i'm combining them elseif's because have intention of combining queries user can utilize number of dropdowns filter. right i'd each 1 work on own using elseif method. @ moment, code works racename, nil else. returns blank table. ideas?

because first bit of code runs doesn't elseif's. seek switch statement instead, or take out else's

php mysql

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