PHP require_once奇怪地无法正常工作？

Question

I'm trying to include a file in a page. The file is located in a folder called phpThumb which is placed inside my wordpress theme directory.
This is how I tried to include the file"

<?php require_once(get_bloginfo('template_url')."/phpThumb/phpThumb.config.php"); ?>

For some reason, this doesn't work.
I did check and get_bloginfo() returns a value and does not echo a value.
I triple checked the code for validity and it's all fine IMO...

What could possibly be wrong?

PS ; It worked using $_SERVER['DOCUMENT_ROOT'] but the output of it is dependent on the current page (correct me if I'm wrong) so it's not as efficient for me.

Answer 1

require_once expects a file in a directory not a url.

Replace get_bloginfo('template_url') with the Wordpress function get_template_directory() .

<?php require_once(get_template_directory()."/phpThumb/phpThumb.config.php"); ?> 

Answer 2

You're trying to require, not include. If you want to include do this: <?php include("page"); ?> <?php include("page"); ?>

Answer 3

$_SERVER['DOCUMENT_ROOT'] is not dependent on the current page/file. It will give you the system file path to your web root folder. require_once expects a system file path. So if your phpThumb.config.php is sitting at /dir1/dir2/phpThumb/phpThumb.config.php from your web root. You would do this

require_once($_SERVER["DOCUMENT_ROOT"] . '/dir1/dir2/phpThumb/phpThumb.config.php');

Check the output of get_bloginfo('template_url')."/phpThumb/phpThumb.config.php" and compare it to the above.