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Home > List of blog posts > 画PHP原理图，将php嵌入到html中，了解get和post的区别（手画php原理图,用$_GET和$_POST的php语句嵌入html中体验区别）2019年6月3日20点
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画PHP原理图，将php嵌入到html中，了解get和post的区别（手画php原理图,用$_GET和$_POST的php语句嵌入html中体验区别）2019年6月3日20点
Nick的博客
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画PHP原理图：

PHP原理图.png



用$_GET方式做一个表单提交，并在页面中输出提交的键名和值：

实例

<!doctype html>
<html lang="zh_cn">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>get</title>
</head>
<body>
<form action="" method="get">
    <label for="email">邮箱：</label>
    <input type="email" id="email" name="email" value="<?=$_GET['email']?:''?>">

    <label for="password">密码：</label>
    <input type="password" id="password" name="password" value="<?=$_GET['password']?: ''?>">

    <button>登录</button>
</form>
</body>
</html>

<?php
//获取通过url发送的变量参数
//键名=>变量名， 值=>变量值
echo '<pre>';
print_r($_GET);
?>

运行实例 »

点击 "运行实例" 按钮查看在线实例


网页显示效果：

GET.png



用$_POST做一个表单提交：

实例

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>post</title>
</head>
<body>
<form action="" method="post">
    <label for="email">邮箱：</label>
    <input type="email" id="email" name="email" value="<?=$_POST['email']?? null?>">

    <label for="password">密码：</label>
    <input type="password" id="password" name="password" value="<?=$_POST['password']?? null?>">

    <button>登录</button>
</form>
</body>
</html>

<?php
//获取通过url发送的变量参数
//键名=>变量名， 值=>变量值
echo '<pre>';
print_r($_POST);
?>

运行实例 »

点击 "运行实例" 按钮查看在线实例



显示效果：POST.png

Correction status：Uncorrected

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