PHP学习笔记(二)
1、表单 PHP 的 $_GET 和 $_POST用于检索表单中的值,比如用户输入。 $_GET 和$_POST变量分别用于收集来自 method="get" 和method="post"的表单中的值,都是一个数组,内容分别是由 HTTP GET 和HTTP POST方法发送的变量名称和值。 从带有 GET 方法的表单发送
1、表单
PHP 的 $_GET和 $_POST用于检索表单中的值,比如用户输入。
$_GET和$_POST变量分别用于收集来自 method="get" 和method="post"的表单中的值,都是一个数组,内容分别是由 HTTP GET 和HTTP POST方法发送的变量名称和值。
从带有 GET 方法的表单发送的信息,对任何人都是可见的(会显示在浏览器的地址栏,所以在发送密码或其他敏感信息时,不应该使用这个方法),并且对发送的信息量也有限制(最多 100 个字符);从带有 POST 方法的表单发送的信息,对任何人都是不可见的(不会显示在浏览器的地址栏),并且对发送信息的量也没有限制。
$_REQUEST变量包含了 $_GET,$_POST以及 $_COOKIE 的内容,可用来取得通过 GET 和POST 方法发送的表单数据的结果。
我们在/var/www目录下建立form.php文件,内容如下:
1 |
|
再在此目录下建立form_welcome.php文件,内容如下:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 |
|
打开地址:http://127.0.0.1/form.php,看到如下界面:
在编辑框中输入,如:
点击第一个提交按钮,看到如下界面:
点击第二个提交按钮,看到如下界面:

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