In terms of user experience, what are some considerations when implementing a limit on consecutive line breaks in a PHP application like a guestbook?

When implementing a limit on consecutive line breaks in a PHP application like a guestbook, it is important to consider the impact on user experience. By setting a maximum number of consecutive line breaks allowed, you can prevent excessive spacing that may disrupt the layout of the guestbook entries and make the content difficult to read. This can help maintain a clean and organized appearance for users browsing the guestbook. 

// Limit consecutive line breaks in guestbook entry
$max_line_breaks = 2;
$entry = $_POST['guestbook_entry'];
$entry = preg_replace("/(\n\s*){" . ($max_line_breaks + 1) . ",}/", "\n\n", $entry);
echo $entry;

Keywords

PHP user experience line breaks input validation guestbook

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