PHP - 将输出的CMS内容输入到php变量中

I use Perch for CMS, and in order to output content, you put the following code in your page:

<?php perch_content('Phone Number'); ?>

However, I need to make the outputted content into a php variable, something like:

$phonenumber = perch_content('Phone Number');

I'm a complete php novice and I've tried a few things but nothing is working.

Any ideas?

$phonenumber = perch_content('Phone Number', true);

see http://docs.grabaperch.com/docs/content/perch-content/

It's always a good idea to look into documentations ;)

For specific content I had to use:

perch_content('Events', array(
  'page' => '/sites/events.php',
  'skip-template' => true
  ));