验证文件找不到表单数据

Question

我已经制作了两个文件 php，一个有验证 php 代码，另一个有我输入一些数据的表单，但看起来 Switch 命令有问题，看了很多次才发现问题，但不幸的是我没有得到 true .

这是我的代码；

我已经形成的第一个文件

<form action="Validation_search_02.php" method="post">

<label>Your favourite fruit:<input type="text" name="t_Opst" id="t_Opst"></label>

<input type="submit" name="G_mby" id="G_mby">

</form>

我有验证文件的第二个文件（php）

<?php

if(isset($_P0ST["G_mby"])){

$L_ings=$_POST["t_Opst"];

switch($L_ings){

case "Apple":

 echo "Your favourite fruit is $L_ings";

break;

case "Pear":

echo "Your favourite fruit is $L_ings";

break;

case "Banana":

 echo "Your favourite fruit is $L_ings";

break;

case "Mango":

 echo "Your favourite fruit is $L_ings";

break;

default:

echo "You should eat some fruit";

}

}

?>

Answer 1

在您的 php 文件中，您可以验证是否有 POST 请求，当涉及到您的代码时，不需要切换，因为相同的代码会重复多次，您可以使用 if 和 or 子句代替。尝试这个：<?php&nbsp; if ($_SERVER["REQUEST_METHOD"] == "POST"){&nbsp; &nbsp; $L_ings = $_POST["t_Opst"];&nbsp; &nbsp; echo "hola";&nbsp; &nbsp; if($L_ings == "Pear" or $L_ings == "Banana" or $L_ings == "Mango" or $L_ings == "Apple")&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;echo "Your favourite fruit is $L_ings";&nbsp; &nbsp; else&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;echo "You should eat some fruit";&nbsp; }?>