我是后端编程的新手，简而言之，我在一个questionare网站
工作 该项目的要求是在第一页是一个带有一个国家地图的SVG，然后基于所选城市，该值要传递给数据库，即地图中已选择的城市的值。
对于后端，我正在使用PHP，对于数据库(PDO(，我正在使用PHP，而对于数据库(PDO(，
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<link rel="stylesheet" href="./styling/citystyle.css">
<title>City</title>
</head>
<body>
<div class="hero">
<h1 class="qytetText">Where are you from?</h1>
<div class="map-container">
<!-- form -->
<form action="info.php" method="GET">
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title="Peć" id="XK-PE" onclick="addActive05()" value= "5" name="Peje"/>
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title="Uroševac" id="XK-UR" onclick="addActive06()" value= "6" name="Feriza"/>
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title="Prizren" id="XK-PZ" onclick="addActive07()" value= "7" name="Prizren"/>
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</svg>
</div>
</form>
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</div>
</body>
<script>
function addActive01() {
document.getElementById("XK-PR").classList.add('active');
document.getElementById("XK-KM").classList.remove("active");
document.getElementById("XK-DA").classList.remove("active");
document.getElementById("XK-GN").classList.remove("active");
document.getElementById("XK-PE").classList.remove("active");
document.getElementById("XK-UR").classList.remove("active");
document.getElementById("XK-PZ").classList.remove("active");
var qytet = document.getElementById("XK-PR");
var emriQytetit = qytet.getAttribute('value');
window.location.href='./info.php'
}
function addActive02() {
document.getElementById("XK-KM").classList.add('active');
document.getElementById("XK-PR").classList.remove("active");
document.getElementById("XK-DA").classList.remove("active");
document.getElementById("XK-GN").classList.remove("active");
document.getElementById("XK-PE").classList.remove("active");
document.getElementById("XK-UR").classList.remove("active");
document.getElementById("XK-PZ").classList.remove("active");
var qytet = document.getElementById("XK-KM");
var emriQytetit = qytet.getAttribute('value');
window.location='./info.php'
}
function addActive03() {
document.getElementById("XK-DA").classList.add('active');
document.getElementById("XK-PR").classList.remove("active");
document.getElementById("XK-KM").classList.remove("active");
document.getElementById("XK-GN").classList.remove("active");
document.getElementById("XK-PE").classList.remove("active");
document.getElementById("XK-UR").classList.remove("active");
document.getElementById("XK-PZ").classList.remove("active");
var qytet = document.getElementById("XK-DA");
var emriQytetit = qytet.getAttribute('value');
window.location='./info.php'
}
function addActive04() {
document.getElementById("XK-GN").classList.add('active');
document.getElementById("XK-PR").classList.remove("active");
document.getElementById("XK-KM").classList.remove("active");
document.getElementById("XK-DA").classList.remove("active");
document.getElementById("XK-PE").classList.remove("active");
document.getElementById("XK-UR").classList.remove("active");
document.getElementById("XK-PZ").classList.remove("active");
var qytet = document.getElementById("XK-GN");
var emriQytetit = qytet.getAttribute('value');
window.location='./info.php'
}
function addActive05() {
document.getElementById("XK-PE").classList.add('active');
document.getElementById("XK-PR").classList.remove("active");
document.getElementById("XK-KM").classList.remove("active");
document.getElementById("XK-DA").classList.remove("active");
document.getElementById("XK-GN").classList.remove("active");
document.getElementById("XK-UR").classList.remove("active");
document.getElementById("XK-PZ").classList.remove("active");
var qytet = document.getElementById("XK-PE");
var emriQytetit = qytet.getAttribute('value');
window.location='./info.php'
}
function addActive06() {
document.getElementById("XK-UR").classList.add('active');
document.getElementById("XK-PR").classList.remove("active");
document.getElementById("XK-KM").classList.remove("active");
document.getElementById("XK-DA").classList.remove("active");
document.getElementById("XK-GN").classList.remove("active");
document.getElementById("XK-PE").classList.remove("active");
document.getElementById("XK-PZ").classList.remove("active");
var qytet = document.getElementById("XK-UR");
var emriQytetit = qytet.getAttribute('value');
window.location='./info.php'
}
function addActive07() {
document.getElementById("XK-PZ").classList.add('active');
document.getElementById("XK-PR").classList.remove("active");
document.getElementById("XK-KM").classList.remove("active");
document.getElementById("XK-DA").classList.remove("active");
document.getElementById("XK-GN").classList.remove("active");
document.getElementById("XK-PE").classList.remove("active");
document.getElementById("XK-UR").classList.remove("active");
var qytet = document.getElementById("XK-PZ");
var emriQytetit = qytet.getAttribute('value');
window.location='./info.php'
}
</script>
</html>
<!-- onclick="window.location='./info.php'" -->我尝试用 js 获取值，然后尝试用 $_POST 将其传递给 php，但它不起作用， 所以如果你们有任何提示，我将不胜感激
谢谢，如果我不清楚，我很抱歉，但我也是 StackOverFlow
的新手
首先，不需要所有这些JS函数。创建这样的单个函数。
function addActive(sender, value){
let paths = document.getElementsByTagName('path');
for(let i=0; i < paths.length; i++){
paths[i].classList.remove("active");
}
sender.classList.add('active');
window.location='./info.php?v=' + value;
}
然后像这样使用函数，
onclick="addActive(this, 1)"
其中 1 是值。
该函数将首先通过删除活动类来停用所有路径，然后它将为所选路径添加活动类。
请注意，我尚未测试此代码，因此您可能需要进行一些更改。这也是一个 GET 请求。
我不确定你想做什么传递给PHP到底是什么，或者如何传递，但是
function addActive02() {
console.log(document.getElementById("XK-KM"));
在浏览器的控制台中，我确实看到
<path d="m 320.34271,73.9104 0.65,2.84 1.93,3.87 3.32,4.14 3.59,-2.49 2.2,-0.55 1.66,3.31 2.48,3.32 -1.65,3.86 0,2.21 -0.55,4.97 3.58,4.41 1.38,6.24 3.87,1.38 1.93,1.66 -0.83,4.97 1.93,3.58 4.15,1.38 2.48,1.11 2.21,5.24 6.07,16.29 0.28,6.9 -2.76,7.73 -0.56,8.56 -3.86,4.14 0,6.07 2.21,3.31 0.83,5.8 3.03,4.41 0.55,11.6 0.83,3.31 3.59,0.83 2.49,2.76 3.31,2.76 1.38,5.52 -1.11,5.24 -5.79,0.28 0,2.21 -2.49,0.55 -3.59,3.04 -2.48,3.03 -4.97,4.14 -0.27,3.04 2.2,1.1 2.21,1.66 -1.1,9.11 -3.04,0.55 -0.83,2.21 1.11,4.97 -3.04,1.65 -3.31,2.76 -3.87,2.21 -4.41,3.59 -3.31,3.59 -6.35,6.07 -3.59,0.28 -4.42,-5.25 -1.93,-3.86 -3.04,-2.49 -1.65,-4.14 -3.04,0 -3.86,2.49 -3.04,0.83 -5.24,0.27 -1.11,4.42 0,2.76 -5.8,4.14 -3.31,-1.1 -0.27,-3.32 -3.59,-2.48 -4.97,0 -2.76,1.93 -0.55,3.04 -4.97,0 -1.38,4.14 0.55,2.76 1.93,4.14 -1.65,3.31 -4.97,-0.28 -3.87,2.21 -3.86,1.11 -1.66,1.93 -1.38,5.52 -2.48,2.48 -0.55,3.87 2.2,3.31 0,2.21 -1.38,3.59 0.14,0.37 0,0 -1.24,0.12 0,0 -3.31,1.66 -2.21,-0.83 -1.38,-7.45 -5.24,-3.86 -2.76,-1.11 -5.53,-0.55 -1.65,-8.28 6.07,-4.42 -1.66,-4.97 -2.76,-1.65 2.21,-2.49 -3.86,-2.76 -0.83,-1.65 -2.48,1.1 -0.83,3.87 -3.04,3.03 -5.52,0.28 -2.76,-3.31 -4.69,-8.01 -0.83,-4.42 -1.66,-1.38 -3.86,-1.1 -0.55,-3.31 1.93,-4.14 2.21,-0.83 1.38,0.55 3.59,-4.14 1.65,-4.69 0.28,-4.14 -4.14,-3.59 -1.38,-5.52 1.65,-3.87 2.76,-4.96 0,-8.01 1.66,-2.76 1.93,-4.14 0.55,-8.28 -7.45,0 0.28,-6.35 -3.04,-4.42 -3.03,-1.65 -1.11,-3.59 -3.03,-3.04 -5.8,-0.55 -1.38,-4.14 -4.14,1.1 -2.76,2.21 -4.14,1.11 -5.52,0.55 -4.14,1.1 -3.11,0 0,0 3.01,-6.34 0.24,-2.87 -10.29,-12.82 -1.9,-3.81 -1.15,-3.35 -0.62,-5.52 1.56,-4.33 2.39,-3.97 3.08,-2.78 2.36,-0.99 1.52,-1.04 4.05,-1.98 4.78,-4.38 3.22,-3.45 7.1,-3.68 10.74,-2.83 2.63,-1.98 2.5,0.52 3.01,1.65 2.81,2.64 1.66,0.19 0.48,-0.38 -0.62,-5.9 20.06,-2.92 1.31,-3.68 -0.38,-10.2 -4.12,-8.84 -1.35,-8.88 0.86,-4.82 -0.69,-6.9 -0.83,-0.61 -0.9,0 -3.36,1.51 -1.18,0.23 -1.28,-0.85 -1.35,-2.31 -1.49,-4.54 -0.1,-2.27 0.27,-1.61 1.91,-4.26 0.45,-1.7 0.1,-1.56 -0.45,-3.5 -1.11,-2.18 -1.66,-1.89 -12.05,-11.07 -2.5,-4.31 1.04,-3.13 16.59,-4.11 10.22,-4.88 5.09,-3.74 10.5,-6.68 2.42,-0.9 6.07,-1.57 1.83,-1.3199998 8.66,-7.97 2.91,-1.37 3.64,-0.38 9.11,0.28 9.14,5.79 4.4,7.3899998 9.91,17.95 4.08,6.11 0.42,1.89 -0.63,2.75 -0.55,1.13 -2.08,0.1 -10.18,-4.31 -2.56,-0.29 -3.4,1 -3.57,3.22 1.25,8.94 1.14,2.18 2.08,2.98 3.22,3.45 3.36,2.22 9.25,2.09 6.82,4.58 z" title="Kosovska Mitrovica" id="XK-KM" onclick="addActive02()" value="2" name="Mitrovica" class="active"></path>
因此，添加了活动类，您可以毫无问题地选择 SVG，然后您的问题必须出现在如何在 PHP 中传递或操作数据。
另外，作为旁注，您应该尽量不要重复相同的代码，例如，您可以在一个函数中完成所有这些函数正在执行的所有操作，例如，您将 svg ID 作为参数传递给该函数。