수업소개
PHP를 이용해서 기존의 글을 수정하는 방법을 알려드립니다.
index.php
<?php
function print_title(){
if(isset($_GET['id'])){
echo $_GET['id'];
} else {
echo "Welcome";
}
}
function print_description(){
if(isset($_GET['id'])){
echo file_get_contents("data/".$_GET['id']);
} else {
echo "Hello, PHP";
}
}
function print_list(){
$list = scandir('./data');
$i = 0;
while($i < count($list)){
if($list[$i] != '.') {
if($list[$i] != '..') {
echo "<li><a href=\"index.php?id=$list[$i]\">$list[$i]</a></li>\n";
}
}
$i = $i + 1;
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>
<?php
print_title();
?>
</title>
</head>
<body>
<h1><a href="index.php">WEB</a></h1>
<ol>
<?php
print_list();
?>
</ol>
<a href="create.php">create</a>
<?php if(isset($_GET['id'])) { ?>
<a href="update.php?id=<?=$_GET['id']?>">update</a>
<?php } ?>
<h2>
<?php
print_title();
?>
</h2>
<?php
print_description();
?>
</body>
</html>
update.php
<?php
function print_title(){
if(isset($_GET['id'])){
echo $_GET['id'];
} else {
echo "Welcome";
}
}
function print_description(){
if(isset($_GET['id'])){
echo file_get_contents("data/".$_GET['id']);
} else {
echo "Hello, PHP";
}
}
function print_list(){
$list = scandir('./data');
$i = 0;
while($i < count($list)){
if($list[$i] != '.') {
if($list[$i] != '..') {
echo "<li><a href=\"index.php?id=$list[$i]\">$list[$i]</a></li>\n";
}
}
$i = $i + 1;
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>
<?php
print_title();
?>
</title>
</head>
<body>
<h1><a href="index.php">WEB</a></h1>
<ol>
<?php
print_list();
?>
</ol>
<a href="create.php">create</a>
<?php if(isset($_GET['id'])) { ?>
<a href="update.php?id=<?=$_GET['id']?>">update</a>
<?php } ?>
<h2>
<form action="update_process.php" method="post">
<input type="hidden" name="old_title" value="<?=$_GET['id']?>">
<p>
<input type="text" name="title" placeholder="Title" value="<?php print_title(); ?>">
</p>
<p>
<textarea name="description" placeholder="Description"><?php print_description(); ?></textarea>
</p>
<p>
<input type="submit">
</p>
</form>
</body>
</html>
update_process.php
<?php
rename('data/'.$_POST['old_title'], 'data/'.$_POST['title']);
file_put_contents('data/'.$_POST['title'], $_POST['description']);
header('Location: /index.php?id='.$_POST['title']);
?>
