Truncate code issue?

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HTML

PHP

WordPress

Hi guys.

I am new to php and trying to truncate these lines of text ('information') in my custom WP theme:

<div class="overskrift"><?php echo get_post_meta(get_the_ID(),'information',true); ?></div>

Any suggestion on how to do it. I tried with the following code, but can't seem to get it to work:

{truncate_post( 130 );}

Basically what i want to do is to make sure all my blog posts have the same lenght on the archive page, as they are being shown in 3 columns. If one post's description ('information') text is longer than the other, the grid will not look good. I need all posts to have the same lenght on the blog/archive page.

If this function is used correctly, i have seen WP cuts off the text at a certain point (after 130 characters in my case) and adds a "..." at the end.

Can anybody tell me how to achieve that effect.

Thanks!

What I have tried:

{truncate_post( 130 );}