PHP中PHP $_POST和PHP $_REQUEST及PHP $

　　笔者最近开始学习PHP语言大法，记录一下学习过程中遇到的知识点。

今天介绍的是php中有关 php $_post 和 php $_request 及 php $_get 的用法及区别~

一、用法

PHP $_REQUEST

　　PHP $_REQUEST 用于收集HTML表单提交的数据。

　　以下实例显示了一个输入字段（input）及提交按钮(submit)的表单(form)。

　　当用户通过点击 "Submit" 按钮提交表单数据时, 表单数据将发送至<form>标签中 action 属性中指定的脚本文件。

　　在这个实例中，我们指定文件来处理表单数据。如果你希望其他的PHP文件来处理该数据，你可以修改该指定的脚本文件名。然后，我们可以使用超级全局变量 $_REQUEST 来收集表单中的 input 字段数据：

<!DOCTYPE html>

<html>

<body>

<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">

Name: <input type="text" name="fname">

<input type="submit">

</form>

<?php

$name = htmlspecialchars($_POST['fname']);

echo $name;

?>

</body>

</html>

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" alt="" width="742" height="285" />

PHP $_POST

　　PHP $_POST 被广泛应用于收集表单数据，在HTML form标签的指定该属性："method="post"。

　　以下实例显示了一个输入字段（input）及提交按钮(submit)的表单(form)。当用户通过点击 "Submit" 按钮提交表单数据时, 表单数据将发送至<form>标签中 action 属性中指定的脚本文件。

　　在这个实例中，我们指定文件来处理表单数据。如果你希望其他的PHP文件来处理该数据，你可以修改该指定的脚本文件名。然后，我们可以使用超级全局变量 $_POST 来收集表单中的 input 字段数据:

<!DOCTYPE html>

<html>

<body>

<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">

Name: <input type="text" name="fname">

<input type="submit">

</form>

<?php

$name = htmlspecialchars($_POST['fname']);

echo $name;

?>

</body>

</html>

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" alt="" width="833" height="313" />

PHP $_GET

　　PHP $_GET 同样被广泛应用于收集表单数据，在HTML form标签的指定该属性："method="get"。

　　PHP$_GET 也可以收集URL中发送的数据。

　　假定我们有一个包含参数的超链接HTML页面：

<html>

<body>

<a href="test_get.php?subject=PHP&web=runoob.com">Test $GET</a>

</body>

</html>

　　当用户点击链接 "Test $GET", 参数 "subject" 和 "web" 将发送至"test_get.php",你可以在 "test_get.php" 文件中使用 $_GET 变量来获取这些数据。

　　以下实例显示了 "test_get.php" 文件的代码：

<html>

<body>

<?php

echo "Study " . $_GET['subject'] . " @ " . $_GET['web'];

?>

</body>

</html>

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" 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" alt="" width="642" height="187" />

注：上述代码及运行结果依赖菜鸟教程

以上就是PHP $_POST和PHP $_REQUEST及PHP $_GET的用法和简单的代码实现过程。

问题一：PHP $_POST和PHP $_REQUEST的区别（我们如果只从运行结果来看，发现好像并没有什么差别~）

问题二：PHP $_POST和PHP $_GET的区别

那接下来我们思考一下这些问题，它们在原理上有什么区别呢？

---------------------------------------------手动分割线---------------------------------------------

二、区别

　　问题一：PHP $_POST和PHP $_REQUEST的区别

　　PHP $_REQUEST

php中$_REQUEST可以获取以POST方法提交的数据，但是速度比较慢。

　　PHP $_POST

用来获取由浏览器通过POST方法提交的数据。
POST方法他是通过HTTP POST机制，将表单的各个字段放置在HTTP HEADER内一起传送到action属性所指的URL地址中，用户看不到这个过程。
它提交的大小一般来说不受限制（具体根据服务器的不同，还是会些许不同）

　　问题二：PHP $_POST和PHP $_GET的区别

　　PHP $_POST

用来获取由浏览器通过POST方法提交的数据。
POST方法他是通过HTTP POST机制，将表单的各个字段放置在HTTP HEADER内一起传送到action属性所指的URL地址中，用户看不到这个过程。
它提交的大小一般来说不受限制（具体根据服务器的不同，还是会些许不同）

　　　　1. 安全性较高。

　　　　2. 传送数据量大，请求对数据长度没有要求。

　　　　3.请求不会被缓存，也不会保留在浏览器历史记录中。

　　PHP $_GET

用来获取由浏览器通过GET方法提交的数据。
GET方法他是通过把参数数据加在提交表单的action属性所指的URL中，值和表单内每个字段一一对应，然后在URL中可以看到，但是有如下缺点：

　　　　1. 安全性不好，在URL中可以看得到。

　　　　2. 传送数据量较小，不能大于2KB。

参考资料：

https://www.jb51.net/article/28957.htm

https://www.runoob.com