[英]How Do I Pass Javascript Variables Into MYSQL Using PHP?
我想将我的变量发送到 mysql 数据库,但数据库仅使用 HTML 输入标签显示变量。
结果显示“未定义的指数:比率和金额”
请求解决。
谢谢
<?php if(isset($_POST['send'])){ $dayhour = $_POST['dayhour']; $wagetype = $_POST['wagetype']; $rate = $_POST['rate']; $amount = $_POST['amount']; $query = "INSERT INTO `result` ( `DaynHour`, `Wagetype`, `Rate`, `Amount`) VALUES ('$dayhour','$wagetype', '$rate', '$amount')"; }?>
<form action="connection.php" method="post" class="form-signin"> <label for="hour">hour</label><input name="dayhour" type="text" id="dayhour" ><br> <label for="wagetype">type</label> <select name="wagetype" id="wagetype" onchange="calc()"> <option value="PublicHolidays" id="PHOT">PublicHolidays</option> <option value="Normaldays" id="NDOT">Normaldays</option> <option value="MorningShift" id="NDOT">MorningShift</option> </select><br><br> <script type="text/javascript"> function calc(){ var a = parseFloat(document.querySelector("#dayhour").value); var op = document.querySelector("#wagetype").value; var amount; if (op == "PublicHolidays") { rate = 37.5; amount = rate *a;} else if (op == "Normaldays") { rate = 2; amount = rate *a;} else if (op == "MorningShift") { rate = 6; amount = rate *a;} document.querySelector("#amount").innerHTML = amount; document.querySelector("#rate").innerHTML = rate; } </script> <label for="rate">rate:</label><output name="rate" id="rate" ></output><br> <label for="amount">amount:</label><output name="amount" id="amount" ></output><br> <button name="send" type="submit">Sign up</button>
是的,您可以使用表单传递任何值。 在这种情况下,创建一个隐藏的输入字段并将其值分配给您想要的任何标签的值。 这可以通过 javascript 或通过监听更改事件轻松 JQuery 来完成。 就这样。 提交表格,你就有了价值。
尝试将<output name="rate" id="rate" ></output>
更改为<input name="rate" id="rate" type="hidden"/>
和<output name="amount" id="amount" ></output>
到<input name="amount" id="amount" type="hidden"/>
您可以将您的 calc() function 更改为此代码,我认为添加金额和费率的默认值是一个好主意,以防万一它们不符合 IF 条件
function calc() {
var a = parseFloat(document.querySelector("#dayhour").value);
var op = document.querySelector("#wagetype").value;
var amount;
var rate;
if (op == "PublicHolidays") {
rate = 37.5; amount = rate *a;
} else if (op == "Normaldays") {
rate = 2; amount = rate *a;
} else if (op == "MorningShift") {
rate = 6; amount = rate *a;
}
document.getElementById("amount").value = amount;
document.getElementById("rate").value = rate;
}
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