php-CRUD/post_edit.php at main · armin-lambda/php-CRUD · GitHub

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<?php

session_start();
require "core/config.php";

if (!isset($_GET["id"])) {
    header("location: index.php");
    exit();
}

$post_query = $connection->query("SELECT * FROM post WHERE ID = '{$_GET['id']}'");
$post = mysqli_fetch_array($post_query);

if (!$post) {
    header("location: index.php");
    exit();
}

if (isset($_POST["edit-post"])) {
    $author = $_POST["author"];
    $title = $_POST["title"];
    $body = $_POST["body"];

    try {
        $user_query = $connection->query("SELECT username FROM user WHERE username = '$author'");
        $user = mysqli_fetch_array($user_query);

        if ($user) {
            $connection->query("UPDATE post SET author = '$author', title = '$title', body = '$body' WHERE ID = '{$_GET['id']}'");

            $_SESSION["message"] = "Post was edited successfully";
            $_SESSION["message-type"] = "primary";

            header("location: index.php");
            exit();
        } else {
            $_SESSION["message"] = "This author is not exists";
            $_SESSION["message-type"] = "danger";

            $URL = $URLS["post_edit"] . $_GET["id"];
            header("location: $URL");
            exit();
        }
    } catch (Exception $e) {
        $_SESSION["message"] = "Something went wrong";
        $_SESSION["message-type"] = "warning";

        $URL = $URLS["post_edit"] . $_GET["id"];
        header("location: $URL");
        exit();
    }
}

?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Post Edit</title>
    <link rel="stylesheet" href="css/bootstrap.css">
    <link rel="stylesheet" href="css/style.css">
    <style>
        body {
            background-color:rgb(213, 217, 220);
        }
    </style>
</head>
<body>
    <div class="content">
        <header>
            <h2>PHP CRUD APPLICATION</h2>
            <a href="index.php" class="btn btn-light w-100"><i>Back To Main Page</i></a>
        </header>

        <br>

        <?php include 'includes/message.php' ?>

        <div class="post-group">
            <!-- Edit Post Form -->
            <form action="" method="POST">
                <input type="text" name="author" placeholder="Author" maxlength="200" class="form-control" value="<?php echo $post['author']; ?>" required>
                <input type="text" name="title" placeholder="Title" maxlength="50" class="form-control" value="<?php echo $post['title']; ?>" required>
                <textarea name="body" rows="5" placeholder="Body" class="form-control" required><?php echo $post['body']; ?></textarea>
                <input type="submit" value="Edit Post" name="edit-post" class="btn btn-primary">
            </form>
        </div>
    </div>

    <script src="js/script.js"></script>
</body>