我如何使这更有效？

Question

<?php
include "../get/header.php";
$Username = SecurePost($_GET['Username']);
$gU = mysqli_fetch_object($getUser = mysqli_query($connection, "SELECT * FROM Users WHERE Username='".$Username."'"));
$UserExist = mysqli_num_rows($getUser = mysqli_query($connection, "SELECT * FROM Users WHERE Username='".$Username."'"));
$getUsers = mysqli_query($connection, "SELECT * FROM Users");
$numUsers = mysqli_num_rows($getUsers); 
$reqKills = mysqli_num_rows($allKills = mysqli_query($connection, "SELECT * FROM Kills WHERE Killer='".$gU->Username."'")); 
mysqli_query($connection, "UPDATE Users SET Kills='".$reqKills."' WHERE Username='".$gU->Username."'");
$pID = file_get_contents('http://rproxy.pw/rapi/GetIdByUsername/'.$gU->Username.'');
$Rank = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=GetGroupRole&playerid='.$pID.'&groupid=947351');

$getTemp = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='983872'");
$numTemp = mysqli_num_rows($getTemp); 

$Tact = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='976897'");
$numTac = mysqli_num_rows($Tact); 

$Sci = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='986292'");
$numSci = mysqli_num_rows($Sci); 

$MAC = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='1045203'");
$NumMAC = mysqli_num_rows($MAC); 

$Ops = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='1159559'");
$numOps = mysqli_num_rows($Ops); 

$Eng = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='990439'");
$numEng = mysqli_num_rows($Eng); 

$Diplo = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='992455'");
$numDip = mysqli_num_rows($Diplo); 

$Intel = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='974799'");
$numIntel = mysqli_num_rows($Intel); 

$realIA = mysqli_query($connection, "SELECT * FROM Branchs WHERE Username='".$Username."' AND GroupID='2640969'");
$numIA = mysqli_num_rows($realIA); 
#GroupAssign#
$Temporal = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=983872');
$Tactical = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=976897');
$Science = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=986292');
$MACO = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=1045203');
$Operations = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=1159559');
$Engineering = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=990439');
$IA = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=2640969');
$Diplomatic = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=992455');
$Intelligence = file_get_contents('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid='.$pID.'&groupid=974799');

if ($Temporal == true AND $numTemp == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Temporal Investigations','Temporal','983872')");
}
if ($Tactical == true AND $numTac == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Tactical Command','Tactical','976897')");
}
if ($Science == true AND $numSci == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Applied Sciences','Science','986292')");
}
if ($MACO == true AND $NumMAC == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','MACO','MACO','1045203')");
}
if ($Operations == true AND $numOps == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Operations','Operations','1159559')");
}
if ($Engineering == true AND $numEng == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Engineering','Engineering','990439')");
}
if ($IA == true AND $numIA == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Internal Affairs','IA','2640969')");
}
if ($Diplomatic == true AND $numDip == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Diplomatic Corps','Diplomatic','992455')");
}
if ($Intelligence == true AND $numIntel == "0") {
mysqli_query($connection, "INSERT INTO Branchs (Username, Name, Image, GroupID) VALUES('".$gU->Username."','Starfleet Intelligence','Intelligence','974799')");
}
?>

正如您所看到的，它非常低效，并且由于某种原因仅适用于第一个临时查询。 有什么方法可以简化它以提高效率并使值适用于每个查询？ 我没有收到任何错误。

Answer 1

此查询将为$Username不存在的每个组在Branchs插入一行。

INSERT INTO Branchs (Username, Name, Image, GroupID)
SELECT '{$gU->Username}', groups.Name, groups.Image, groups.GroupID
FROM (
    SELECT '983872' AS GroupID, 'Temporal Investigations' AS Name, 'Temporal' AS Image
    UNION
    SELECT '976892', 'Tactical Command', 'Tactical'
    UNION
    SELECT '986292', 'Applied Sciences', 'Science'
    ...
    ) AS groups
LEFT JOIN Branchs ON Branches.GroupID = groups.GroupID AND Username = '$Username'
WHERE Branchs.GroupID IS NULL

有关LEFT JOIN如何返回UNION子查询中在Branchs没有匹配项的行，请参阅仅当值不存在时返回行。