我可以将html文本字段值设置为变量，以便保存以前输入的内容吗？

Question

<?php $content = $_POST['content']?> <p>Page title: <input type='text' name='title' value="<?php $content ?>"/></p>

I would like to know if something like this is either possible, or if theres a work around, like a way to save the previously entered content as the value. Any help is greatly appreciated.

Answer 1

Save it in a session and retrieve it anywhere using the key just start the session like below :

<?php
// Start the session
session_start();
?>

<?php
// Set session variables
$content = $_POST['content']
$_SESSION["content"] = $content;

echo "Session variables are set."+ $_SESSION["content"] ;
?>

Answer 2

If you want to do it with PHP you need to learn about sessions and cookies .

Here is an example with cookies

<?php
start_session();
if(isset($_GET["title"])) {
    if(isset($_SESSION["oldTitle"])) {
        // do what you want to do
    }
    // update to the new value
    $_SESSION["oldTitle"] = $_GET["title"];
}