How can PHP developers ensure that the converted HTML maintains the original formatting and styling of the forum text?

When converting forum text to HTML, PHP developers can ensure that the original formatting and styling are maintained by using a combination of regular expressions to identify and preserve specific formatting elements such as bold or italic text, links, and blockquotes. Additionally, they can utilize CSS classes to apply consistent styling to the converted HTML elements.

function convertForumTextToHTML($forumText){
    // Preserve specific formatting elements using regular expressions
    $forumText = preg_replace('/\[b\](.*?)\[\/b\]/', '<strong>$1</strong>', $forumText);
    $forumText = preg_replace('/\[i\](.*?)\[\/i\]/', '<em>$1</em>', $forumText);
    $forumText = preg_replace('/\[url\](.*?)\[\/url\]/', '<a href="$1">$1</a>', $forumText);
    
    // Apply consistent styling using CSS classes
    $forumText = '<div class="forum-text">' . $forumText . '</div>';
    
    return $forumText;
}

$forumText = "[b]Bold text[/b] [i]Italic text[/i] [url]https://example.com[/url]";
$html = convertForumTextToHTML($forumText);
echo $html;