What are the steps involved in adding a new field for image descriptions in a PHP news system?

Issue: To add a new field for image descriptions in a PHP news system, you need to modify the database schema to include the new field, update the HTML form to allow users to input image descriptions, and modify the PHP code to handle the new field when inserting and displaying news articles. PHP Code Snippet: 

// Step 1: Modify the database schema to include a new field for image descriptions
ALTER TABLE news ADD COLUMN image_description VARCHAR(255);

// Step 2: Update the HTML form to allow users to input image descriptions
<form action="submit_news.php" method="post">
    <input type="text" name="title" placeholder="Title" required>
    <input type="text" name="image_url" placeholder="Image URL" required>
    <input type="text" name="image_description" placeholder="Image Description" required>
    <textarea name="content" placeholder="Content" required></textarea>
    <button type="submit">Submit</button>
</form>

// Step 3: Modify the PHP code to handle the new field when inserting news articles
$title = $_POST['title'];
$image_url = $_POST['image_url'];
$image_description = $_POST['image_description'];
$content = $_POST['content'];

// Insert news article into database
$query = "INSERT INTO news (title, image_url, image_description, content) VALUES ('$title', '$image_url', '$image_description', '$content')";
mysqli_query($conn, $query);

// Display news articles with image descriptions
$query = "SELECT * FROM news";
$result = mysqli_query($conn, $query);
while ($row = mysqli_fetch_assoc($result)) {
    echo "<h2>{$row['title']}</h2>";
    echo "<img src='{$row['image_url']}' alt='{$row['image_description']}'>";
    echo "<p>{$row['content']}</p>";
}

Keywords

PHP news system image descriptions database form handling

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