php Codeigniter $this->input->post 总是 FALSE

Codeigniter $this->input->post is always FALSE

提问by Mj1992

I am trying to send an httpRequest to a codeigniter controller function. I am using the REST console to test the function . I am trying to send 3 POSTvariables .

我正在尝试将 httpRequest 发送到 codeigniter 控制器功能。我正在使用 REST 控制台来测试该功能。我正在尝试发送3 POST变量。

• UserName
• Email
• UserID

• 用户名
• 电子邮件
• 用户身份

Here's the code to handle the request

这是处理请求的代码

public function NewUser()
{
    if($this->input->post())
    {
        $FID        = $this->input->post('UserID');
        $UserName   = $this->input->post('UserName');
        $Email      = $this->input->post('Email');
        echo "working";
        echo $FID;
        echo $UserName;
    }
    else
    {
        echo "not working";
    }
}

But this doesn't work. It always output's not working. When I change everything to geteverything starts working fine.

但这不起作用。它总是输出not working. 当我将一切更改为get一切时，一切都开始正常工作。

What could be the issue ? Post Request is not working anywhere throughout this codeigniter project.

可能是什么问题 ？Post Request 在此期间的任何地方都不起作用codeigniter project。

EDIT

编辑

I created a new script, with the following code.

我使用以下代码创建了一个新脚本。

<?php

  var_dump($_POST);
  echo $_POST['UserName'];
  echo $_POST['FacebookID'];
  echo $_POST['Email'];
  echo "********************************";
?>

It is saying undefined index. What could be the issue ? Please help. It works fine for $_GET

它在说undefined index。可能是什么问题 ？请帮忙。它适用于$_GET

回答by Harshal Mahajan

$this->input->post()is obliviously return the false because you are not mentioning the name of which value you want to retrieve using post.Make changes here in your code :

$this->input->post()不经意地返回 false，因为您没有提到要使用 post.Make 在代码中检索的值的名称：

if(isset($_POST))

or

或者

  if(!empty($_POST))

See POST

见POST

you can also do this:

你也可以这样做：

if($this->input->post('username'))//username is the name of post variable

回答by Himanshu Pandey

you should try

你应该试试

isset($_REQUEST)or !empty($_REQUEST)

isset($_REQUEST)或者 !empty($_REQUEST)

to check data is coming or not

检查数据是否到来

回答by MJ Pakzad

To get the method in codeigniter 3 (docs) you can use the following code:

要获取 codeigniter 3 ( docs) 中的方法，您可以使用以下代码：

echo $this->input->method(TRUE); // Outputs: POST
echo $this->input->method(FALSE); // Outputs: post
echo $this->input->method(); // Outputs: post

example:

例子：

public function NewUser()
{
    if($this->input->method() === 'post')
    {
        $FID        = $this->input->post('UserID');
        $UserName   = $this->input->post('UserName');
        $Email      = $this->input->post('Email');
        echo "working";
        echo $FID;
        echo $UserName;
    }
    else
    {
        echo "not working";
    }
}

回答by Christian Giupponi

Try

尝试

if( count($this->input->post()) > 0 )
{

}
else
{

}

回答by Kobus Myburgh

I had a similar problem. Due to using internationalization, URLs get redirected from user/login to user/en/login. When that redirect happens, the POST array gets lost.

我有一个类似的问题。由于使用国际化，URL 会从 user/login 重定向到 user/en/login。当该重定向发生时，POST 数组将丢失。

I am not sure if this is your problem as well, but check if your page redirects after submission.

我不确定这是否也是您的问题，但请检查您的页面在提交后是否重定向。

回答by Haritsinh Gohil

In Codeigniter we can check which HttpRequestit is using 2 below Inputclass' method :

在 Codeigniter 中，我们可以检查HttpRequest它正在使用以下Input类的2方法：

1. server('REQUEST_METHOD')

1. server('REQUEST_METHOD')

$this->input->server()is identical to Core PHP's $_SERVERvariable.

$this->input->server()与 Core PHP 的$_SERVER变量相同。

example:

例子：

if ($this->input->server('REQUEST_METHOD') == 'GET') {
   echo "It's GET Request";
} else if ($this->input->server('REQUEST_METHOD') == 'POST') {
   echo "It's POST Request";
}  

2. method()

2. method()

Since Codeigniter 3 we can use method()also for checking request type.

从 Codeigniter 3 开始，我们也method()可以用于检查请求类型。

method([$upper = FALSE])

方法（[$upper = FALSE]）

Parameters:$upper (bool) – Whether to return the request method name in upper or lower case

参数：$upper (bool) – 是否以大写或小写形式返回请求方法名称

Returns:HTTP request method

返回：HTTP 请求方法

Return type:string

返回类型：字符串

explanantion:It Returns the $_SERVER['REQUEST_METHOD'], with the option to set it in uppercase or lowercase.

说明：它返回$_SERVER['REQUEST_METHOD']，并可选择将其设置为大写或小写。

example:

例子：

echo $this->input->method(TRUE); // Outputs: POST
echo $this->input->method(FALSE); // Outputs: post
echo $this->input->method(); // Outputs: post