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todo.php
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todo.php
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<?php
/**
* Class TodoList
*/
class TodoList
{
public function addItem($item)
{
$_SESSION['TodoList'][] = $item;
}
public function editItem($position, $item)
{
$_SESSION['TodoList'][$position - 1] = $item;
}
public function removeItem($position)
{
unset($_SESSION['TodoList'][$position - 1]);
}
}
$list = new TodoList();
session_start();
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if (!empty($_POST['addItem'])) {
$list->addItem($_POST['addItem']);
}
if (!empty($_POST['editPosition'])) {
$list->editItem($_POST['editPosition'], $_POST["editItem{$_POST['editPosition']}"]);
}
if (!empty($_POST['removePosition'])) {
$list->removeItem($_POST['removePosition']);
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>A Simple Todo List</title>
</head>
<body>
<header>
<form name="logout" action="logout.php">
欢迎 <?= $_SESSION['username'] ?>
<button>登出</button>
</form>
</header>
<p>
<form method="post" action="todo.php">
<input name="addItem" type="text" placeholder="你想做些什么呢？">
<button>添加</button>
</form>
</p>
<form method="post" action="todo.php">
<?php foreach ((array)$_SESSION['TodoList'] as $key => $item): ?>
<input type="checkbox">
<input name="editItem<?= $key + 1 ?>" type="text" value="<?= $item ?>">
<button name="editPosition" value="<?= $key + 1 ?>">保存修改</button>
<button name="removePosition" value="<?= $key + 1 ?>">删除</button>
<br />
<?php endforeach ?>
</form>
</body>
</html>