识别$

识别$ _REQUEST(Recognize $_REQUEST) $a = $_REQUEST['label'];

现在，我如何识别存储在变量$a的值是来自$_GET还是来自$_POST ？ 如果用户是从$_GET收集的，我想重定向用户。 有没有办法检查？ PHP有点难度。 就像这样：

$var = recognize($_REQUEST['label']); if($var == 'GET') { } else { } $a = $_REQUEST['label'];

Now how can i recognize whether the value stored in variable $a was from $_GET or from $_POST? I wanted to redirect user if it was collected from $_GET. Is there any way to check ? PHP is little tough. Just something like this:

$var = recognize($_REQUEST['label']); if($var == 'GET') { } else { }

最满意答案

一旦赋值变量，您将无法分辨它（通常）的来源。

考虑做这样的事情，因为如果你使用$_REQUEST它甚至可以来自$_COOKIE ！

if (isset($_GET['label'])) { // do redirect } elseif (isset($_POST['label'])) { // do something else }

或者，如果您将该变量传递到深层，您无法分辨它最初的来源：

class RequestParameter { private $name; private $value; private $source; public function __construct($name) { $this->name = $name; if (isset($_POST[$name])) { $this->value = $_POST[$name]; $this->source = INPUT_POST; } elseif (isset($_GET[$name])) { $this->value = $_GET[$name]; $this->source = INPUT_GET; } } public function isFromGet() { return $this->source === INPUT_GET; } public function getValue() { return $this->value; } } $a = new RequestParameter('label'); if ($a->isFromGet()) { // do redircet }

但我建议以不必要的方式构建代码。 一种方法是检查是否进行了POST：

$_SERVER['REQUEST_METHOD'] === 'POST'

Once a variable has been assigned, you won't be able to tell where it came from (usually).

Consider doing something like this, because if you use $_REQUEST it could even come from $_COOKIE!

if (isset($_GET['label'])) { // do redirect } elseif (isset($_POST['label'])) { // do something else }

Or, if you're passing that variable deep down where you can't tell where it originally came from:

class RequestParameter { private $name; private $value; private $source; public function __construct($name) { $this->name = $name; if (isset($_POST[$name])) { $this->value = $_POST[$name]; $this->source = INPUT_POST; } elseif (isset($_GET[$name])) { $this->value = $_GET[$name]; $this->source = INPUT_GET; } } public function isFromGet() { return $this->source === INPUT_GET; } public function getValue() { return $this->value; } } $a = new RequestParameter('label'); if ($a->isFromGet()) { // do redircet }

But I would suggest structuring your code in a way that this is not necessary. One way is to check whether a POST was made:

$_SERVER['REQUEST_METHOD'] === 'POST'识别$ _REQUEST(Recognize $_REQUEST) $a = $_REQUEST['label'];

现在，我如何识别存储在变量$a的值是来自$_GET还是来自$_POST ？ 如果用户是从$_GET收集的，我想重定向用户。 有没有办法检查？ PHP有点难度。 就像这样：

$var = recognize($_REQUEST['label']); if($var == 'GET') { } else { } $a = $_REQUEST['label'];

Now how can i recognize whether the value stored in variable $a was from $_GET or from $_POST? I wanted to redirect user if it was collected from $_GET. Is there any way to check ? PHP is little tough. Just something like this:

$var = recognize($_REQUEST['label']); if($var == 'GET') { } else { }

最满意答案

一旦赋值变量，您将无法分辨它（通常）的来源。

考虑做这样的事情，因为如果你使用$_REQUEST它甚至可以来自$_COOKIE ！

if (isset($_GET['label'])) { // do redirect } elseif (isset($_POST['label'])) { // do something else }

或者，如果您将该变量传递到深层，您无法分辨它最初的来源：

class RequestParameter { private $name; private $value; private $source; public function __construct($name) { $this->name = $name; if (isset($_POST[$name])) { $this->value = $_POST[$name]; $this->source = INPUT_POST; } elseif (isset($_GET[$name])) { $this->value = $_GET[$name]; $this->source = INPUT_GET; } } public function isFromGet() { return $this->source === INPUT_GET; } public function getValue() { return $this->value; } } $a = new RequestParameter('label'); if ($a->isFromGet()) { // do redircet }

但我建议以不必要的方式构建代码。 一种方法是检查是否进行了POST：

$_SERVER['REQUEST_METHOD'] === 'POST'

Once a variable has been assigned, you won't be able to tell where it came from (usually).

Consider doing something like this, because if you use $_REQUEST it could even come from $_COOKIE!

if (isset($_GET['label'])) { // do redirect } elseif (isset($_POST['label'])) { // do something else }

Or, if you're passing that variable deep down where you can't tell where it originally came from:

class RequestParameter { private $name; private $value; private $source; public function __construct($name) { $this->name = $name; if (isset($_POST[$name])) { $this->value = $_POST[$name]; $this->source = INPUT_POST; } elseif (isset($_GET[$name])) { $this->value = $_GET[$name]; $this->source = INPUT_GET; } } public function isFromGet() { return $this->source === INPUT_GET; } public function getValue() { return $this->value; } } $a = new RequestParameter('label'); if ($a->isFromGet()) { // do redircet }

But I would suggest structuring your code in a way that this is not necessary. One way is to check whether a POST was made:

$_SERVER['REQUEST_METHOD'] === 'POST'