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index.php
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<?php
$conn = mysqli_connect(
'localhost',
'root',
'111111',
'tutorials');
$sql = "SELECT * FROM topic";
$result = mysqli_query($conn, $sql);
$list = '';
while($row = mysqli_fetch_array($result)) {
$escaped_title = htmlspecialchars($row['title']);
$list = $list."<li><a href=\"index.php?id={$row['id']}\">{$escaped_title}</a></li>";
}
$article = array(
'title'=>'Welcome',
'description'=>'Hello, web'
);
$update_link = '';
// add ->
$delete_link = '';
// <- add
if(isset($_GET['id'])) {
$filtered_id = mysqli_real_escape_string($conn, $_GET['id']);
$sql = "SELECT * FROM topic WHERE id={$filtered_id}";
$result = mysqli_query($conn, $sql);
$row = mysqli_fetch_array($result);
$article['title'] = htmlspecialchars($row['title']);
$article['description'] = htmlspecialchars($row['description']);
$update_link = '<a href="update.php?id='.$_GET['id'].'">update</a>';
// add ->
$delete_link = '
<form action="process_delete.php" method="post">
<input type="hidden" name="id" value="'.$_GET['id'].'">
<input type="submit" value="delete">
</form>
';
// <- add
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>WEB</title>
</head>
<body>
<h1><a href="index.php">WEB</a></h1>
<ol>
<?=$list?>
</ol>
<a href="create.php">create</a>
<?=$update_link?>
<!-- add -> -->
<?=$delete_link?>
<!-- <-- add -->
<h2><?=$article['title']?></h2>
<?=$article['description']?>
</body>
</html>
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cs |
process_delete.php
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<?php
$conn = mysqli_connect(
'localhost',
'root',
'111111',
'tutorials');
settype($_POST['id'], 'integer');
$filtered = array(
'id'=>mysqli_real_escape_string($conn, $_POST['id'])
);
$sql = "
DELETE
FROM topic
WHERE id = {$filtered['id']}
";
$result = mysqli_query($conn, $sql);
if($result === false){
echo '저장하는 과정에서 문제가 생겼습니다. 관리자에게 문의해주세요';
error_log(mysqli_error($conn));
} else {
echo '삭제에 성공했습니다. <a href="index.php">돌아가기</a>';
}
?>
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cs |
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