Calling functions

  • Resolved darrenalawi

    (@darrenalawi)


    18 years, 9 months ago

    How can I call a function that is “undefined”?

    I have created a custom error message for when users do not enter required info into the comment form (try it here if you want, just hit enter with the field empty: http://www.darrenalawi.com/blog/index.php/google-vs-apple/)

    The message appears as part of a small hack, and is just XHTML from:

    http://www.darrenalawi.com/wordpress/wp-content/themes/darrenalawi/error.php

    What I want to do is replace the XHTML for the header, sidebar and footer with call functions like:

    <?php get_header(); ?>
    <?php get_sidebar(); ?>
    <?php get_footer(); ?>

    But whenever I swap out the XHTML in the error.php file for any of these calls, and load the page (by submtting incorrect form) I get:

    Fatal error: Call to undefined function: get_header() in e:\domains\d\darrenalawi.com\user\htdocs\wordpress\wp-content\themes\darrenalawi\error.php on line 1

    etc…

    Can anyone enlighten me?

Viewing 4 replies - 1 through 4 (of 4 total)
  • Kafkaesqui

    (@kafkaesqui)

    18 years, 9 months ago

    In general you cannot just add a new template to your theme which falls outside the template hierarchy and expect WordPress to know about it (or for it to know about WordPress). To make such a PHP document WP-aware, you need to first include the wp-blog-header.php file, which is discussed here:

    http://codex.wordpress.org/Creating_a_Static_Front_Page#Integrating_WordPress

    Thread Starter darrenalawi

    (@darrenalawi)

    18 years, 9 months ago

    Hi Kafkaesqui,

    Thanks for the quick response, great advice. I added the code to the top of the file and now get this message:

    Warning: main(./wordpress/wp-blog-header.php) [function.main]: failed to open stream: No such file or directory in e:\domains\d\darrenalawi.com\user\htdocs\wordpress\wp-content\themes\darrenalawi\error.php on line 3

    Fatal error: main() [function.require]: Failed opening required ‘./wordpress/wp-blog-header.php’ (include_path=’.;c:\php4\pear’) in e:\domains\d\darrenalawi.com\user\htdocs\wordpress\wp-content\themes\darrenalawi\error.php on line 3

    I assume this is because the php file I inserted this code into isn’t in the root of the domain?

    Can you offer any more of your expertise?

    Kafkaesqui

    (@kafkaesqui)

    18 years, 9 months ago

    The require line would need to point to the location of wp-blog-header.php in your WordPress installation. The path provided on the Codex page is just an example.

    You can try using the full path the error noted:

    require('e:\domains\d\darrenalawi.com\user\htdocs\wordpress\wp-blog-header.php');

    Thread Starter darrenalawi

    (@darrenalawi)

    18 years, 9 months ago

    Hi Kafkaesqui,

    Thats great and it worked as well!! Thanks for your help.

    Darren.

Viewing 4 replies - 1 through 4 (of 4 total)

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