无线电输入结果为PHP - Radio input results in PHP

Radio input results in PHP

本文关键字：PHP 结果输入无线电 | 更新日期: 2023-09-27

我试图获得在无线电中选择的值作为我的结果页面的背景颜色。

HTML代码:

<form action="PhotoForm.php" method="post" enctype="multipart/form-data">
    <input type="radio" name="Colour" value="Pink"/> Pink
    <input type="radio" name="Colour" value="Blue"/> Blue
    <input type="radio" name="Colour" value="Green"/> Green
    <input type="radio" name="Colour" value="Grey"/> Grey
    <input type="reset" value="Reset">
    <input type="submit" value="Upload Images" name="submit">
</form>

PHP代码:

$Color = "white";
$Selection = $_POST["Colour"];
if($Selection == "Pink"){
    $Color = "pink";
}elseif($Selection == "Blue"){
    $Color = "blue";
}elseif($Selection == "Green"){
    $Color = "green";
}elseif($Selection == "Grey"){
    $Color = "SlateGrey";
}

我目前得到的错误显示为:

注意:未定义索引:color在(php文件目录)第4行

我有问题弄清楚为什么它显示这个错误。任何帮助都将非常感激。

这可能会有帮助

<?php
// key is a color the user may submit, value is the color useful to this program
$validColors = array(
    "pink" => "pink",
    "blue" => "blue",
    "green" => "green",
    "grey" => "SlateGrey",
);
// form has been posted
if (strtoupper($_SERVER['REQUEST_METHOD']) == 'POST') {
    // have an acceptable color
    if (isset($_POST['Colour']) && isset($validColors[strtolower($_POST['Colour'])]) {
        $color = $validColors[strtolower($_POST['Colour'])];
    }
    // no valid color provided
    else {
    }
}