通用 PHP 表单处理器

Question

我正在尝试创建一个优雅的表单处理器，它可以接收 POST 或 GET 并循环遍历值并显示它们。我想让它尽可能简单/优雅，并且似乎无法消除 GET/POST 以支持 REQUEST。这段代码输出了一个额外的值对，我显然不明白 GET/POST 与 REQUEST 的关系。表单包含使用 POST 时的先前 GET 信息（因此它们似乎重叠），我不确定如何轻松地不包含 cookie（我认为就是这样）值。我知道 REQUEST 不是做到这一点的最佳方式，但仍然想知道是否没有一种很酷的方式来以这种方式使用它。接受其他建议。

<h1>
    Welcome to the Flexiform! AKA "The Formerator"
</h1>
<p>
This form should process any combination of inputs... this iteration doesn't handle identically-named inputs other than checkboxes. Would like to figure that out.
</p>

<?php

if ($_GET || $_POST) 
//if ($_REQUEST)   // why can't I use this?... it seems to process the incoming page as GET on firstload... 
{
    echo ("<h2>Way to '" . $_SERVER['REQUEST_METHOD'] . "' some! </h2>");

    foreach($_REQUEST as $submittedName => $submittedValue)     
    {   
        if (is_array($submittedValue)) // for checkboxes with more than one selected value
        {         
            $submittedValue = implode(', ', $submittedValue); 
        }                

        echo "For the <b>" . $submittedName . " input, you submitted: :</b> " . $submittedValue."</br>";
    }
}
else 
{
    echo ("<h2>Please submit one of the two forms to see some results.</h2>");
}

?>

<hr><hr>
<br>
GET SOME!
<form action= "" method = "get" >
    <input type = "text" name = "name" value = "GIcabad" />
    <input type = "text" name = "name2" value = "GIcabad2" />
    <input type = "text" name = "name3" value = "GIcabad3" />
    <input type = "text" name = "name" value = "GIcabadbb" />
    <input type = "text" name = "name2" value = "GIcabad2bb" />
    <input type = "text" name = "name3" value = "GIcabad3bb" />
    orange:<input type = "checkbox" name = "colors[]" value = "orange" checked />
    red:<input type = "checkbox" name = "colors[]" value = "red" />
    pink:<input type = "checkbox" name = "colors[]" value = "pink" checked />
    <input type = "submit" />       
</form>
<br>
POST SOME!
<form action = "" method= "post" >
    <input type = "text" name = "name" value = "PIcabad" />
    <input type = "text" name = "name2" value = "PIcabad2" />
    <input type = "text" name = "name3" value = "PIcabad3" />
    <input type = "submit" />
</form>

Answer 1

您可以在应用程序的主文件上循环一次并将$_GET 和$_POST 存储在单个变量中（它的作用类似于$_REQUEST，但没有$_COOKIES）。然后就可以这样使用了

<?php 

$input_values = array();
$gpcs = array_merge($_POST, $_GET);
foreach ($gpcs as $key => $value) {
    $input_values[$key] = $value;
}


// Then you can use anywhere in your application like this
echo isset($input_values['username'])? $input_values['username']:'';
echo isset($input_values['password'])? $input_values['password']:'';
echo isset($input_values['user_type'])? $input_values['user_type']:'';

?>

编辑：表格和结果

<form action="" method="POST">
    <input type="text" name="demo" value="Demo"><br/>
    <input type="text" name="demo2" value="Demo 2"><br/>
    <input type="text" name="array[]" value="Array 1"><br/>
    <input type="text" name="array[]" value="Array 2"><br/>
    <input type="text" name="array[]" value="Array 3"><br/>
    <input type="text" name="array[]" value="Array 4"><br/>
    <input type="submit">
</form>

Array
(
    [demo] => Demo
    [demo2] => Demo 2
    [array] => Array
        (
            [0] => Array 1
            [1] => Array 2
            [2] => Array 3
            [3] => Array 4
        )

)