How to remove all empty line from HTML

There is a HTML
<tr><td>


blah

</td></tr>

How to remove all empty lines and not to change \t

In a text editor that supports replacing strings with regular expression you can replace two newlines with one newline.

I do this in ultraedit from time to time.

1. Turn on regular expression checking
2. replace text: ^p^p
3. with this: ^p

Are you just trying to clean up the text? Because the browser doesn't care how much empty space there is... it skips over that when it's interpreted

This is after template engine, striping not needed blocks.
I need any preg_replace, i think.

Try this:

<?php
$content = eregi_replace("\"","'",$content);
$content = eregi_replace("\n","",$content);
$content = eregi_replace("\r","",$content);
?>

I used it when I was writing to a Javascript variable from a MySQL database, if there is empty lines then, the script doesn´t work.

Replace the PHP variable $content to the name of your own variable.