Replace string in Array in array with truncate string - php

Question

I'm using CodeIgniter for my website. I'm also using the tumblr API on my site to show posted news.
Because showing the entire text is a bit too much, I want to truncate the body copy to 150 characters, I do this by using the character_limiter function of CI.
The code is as followed in my 'home' controller:
public function index() {
//Title for home page
$data['title'] = "Home - Welcome";
// Obtain an array of posts from the specified blog
// See the config file for a list of settings available
$tumblr_posts = $this->tumblr->read_posts();
foreach($tumblr_posts as $tumblr_post) {
$tumblr_post['body'] = character_limiter($tumblr_post['body'], 150);
}
// Output the posts
$data['tumblr_posts'] = $tumblr_posts;
// Load the template from the views directory
$this->layout->view('home', $data);
}
The problem is, that $tumblr_post['body'] isn't shortened when I echo it on my view page. Doing it like above works in Asp.net (C#) but it doesn't seem to work in php, anyone know why and how to solve it or is there an other way?

Answer 1

Your problem is with the foreach loop. You need to add a & before $tumblr_post to pass it by reference. This makes sure you are actually editing the values in the array. Without the &, you're just editing a local variable and not the array.
Try it like this (notice the &):
foreach($tumblr_posts as &$tumblr_post) {
$tumblr_post['body'] = character_limiter($tumblr_post['body'], 150);
}