Linebreaks as BR from page content?

[Carlos]

Here's the better solution, a plugin. Save next lines into a file, name it nl2br.php

Code:

<?php

$thisfile = basename(__FILE__, ".php");

register_plugin(
    $thisfile, 'nl2br', '0.1', 'Carlos', '#',
    'Convert line breaks to &lt;br /&gt;', '', ''
);

add_filter('content',nl2br);

Upload nl2br.php to your plugins folder.

This plugin doesn't require editing your template, nor having a functions.php file in your theme.

(BTW, before trying this plugin you should undo changes by my previous suggestion.)