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How to get form content in php
- 一个新手Original
- 2017-09-09 08:59:161888browse
1: Briefly introduce how to obtain it
#When php accepts information submitted through an HTML form, it will save the submitted data in a global array , we can call the system-specific automatic global variable array to obtain these values.
Two: Commonly used automatic global variables are:
$_GET;
$_POST;
$_REQUEST
其中前两个是经常用的。
他们是通过：from标签中的method 里面传的方式 如果是get就用$_GET属性 如果是post就用 $_POST;
例子：
<form method="post" action="index.php">帐号：<input type = "text" name=login><br>
</form>
echo("你的帐号是：" . $_POST['login']);
这里我们用的post方式传输的所以就要用$_POST;Three: Not much to say Example:
## html code:
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf8"> </head> <body> <form action="send_simpleForm.php" method="POST">name:<input type="text" name="username"><br> <select name="products[]" size=6 multiple> <option value="c++">c++</option> <option value="c#">c#</option> <option value="php">php</option> <option value="Python">Python</option> <option value="lua">lua</option> <option value="JavaScript">JavaScript</option> </select><br /> Message:<br> <textarea name="message" rows="5" cols="40"> </textarea><br> <input type="submit" value="ok"> </form> </body> </html>
php code:
<?php
header("Content-Type: text/html; charset=UTF-8");
if (isset($_POST["username"]))
{
echo "输入的名户名为：" . $_POST["username"] . "<br>";
}
if (isset($_POST["products"]))
{
if (is_array($_POST["products"]) && !empty($_POST["products"]))
{
echo "选择的科目为：" . "<br>";
foreach ($_POST["products"] as $value ) {
echo "$value <br />";
}
echo "选择的个数为：" . count($_POST["products"]) . "<br>";
}
}
if (isset($_POST["message"]))
{
echo "输入的消息为：" . $_POST["message"] . "<br>";
}
//表单如果以POST提交，那么获取内容是就用$_POST["control_name"];
//表单如果以GET提交，那么获取内容就用$_GET["control_name"];
?>
Four: Summary:
PHP gets the summary of each value in the form :Form submission method
1. GET method
Function: Get the data submitted by get method
Format:$_GET[“formelement”]2. POST method Function: Get the data submitted by post method
Format:$_POST[“formelement”]3. REQUEST method Function: Get any Data submitted via method
Format:$_REQUEST[“formelement”]复选框、列表框（名称采用数组形式如:"select[]",在获取其值的时候直接使用$_POST["select"]即可）
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