If I sanitize and save some meta text (called 'message') entered by the user like like this...
update_post_meta($post_id, 'message', sanitize_text_field($_POST['message']));
...and then retrieve and attempt to re-display the text like this...
echo '<textarea id="message" name="message">' . esc_textarea( get_post_meta( $post->ID, 'message', true ) ) . '</textarea>';
...all the line breaks get lost.
In accordance with the WordPress codex, the line breaks are being stripped out by the sanitize_text_field() function. So how can I sanitize the text entered by the user without losing their line breaks?
Since Wordpress 4.7.0
Use sanitize_textarea_field instead of sanitize_text_field