Installing first wordpress theme – Cannot modify header information

  • Hi All,

    I have just started to learn about wordpress development. I have created a theme (using a teaching book as guidance), & now I’m trying to use my theme.

    I keep getting the following message:
    Fatal error: Call to undefined function have_loops() in /home/greentes/public_html/wp/wp-content/themes/greenone/index.php on line 9

    How do I solve this please? ??

    I also keep getting this error:

    Warning: Cannot modify header information – headers already sent by (output started at /home/greentes/public_html/wp/wp-content/themes/greenone/functions.php:5) in /home/greentes/public_html/wp/wp-includes/option.php on line 563

    Any ideas please? I’m a bit clueless at present.

    Thank you ??

Viewing 4 replies - 1 through 4 (of 4 total)
  • Thread Starter Jones Elizabeth

    (@leonagrey)

    I have added <? ob_start(); ?> and <? ob_flush(); ?> to the index.php to try and solve this. It hasn’t worked.

    It is at https://greentest1.co.uk/wp/ (I am using the domain to learn wordpress development)

    What’s around line 5 of your functions.php?

    Thread Starter Jones Elizabeth

    (@leonagrey)

    Thanks, for taking an interest . This is all from line 5 (very long):

    register_sidebar ( array( ‘id’ => ‘primary’, ‘name’ => _( ‘primary’ ), ‘description’ => _(‘This is the primary sidebar.’), ‘before_widget’ => ‘<div id=”%1$s” class=”widget%2$s”>’, ‘after_widget’ => ‘</div>’, ‘before_title’ => ‘<h3 class=”widget-title”> ‘, ‘after_title’ => ‘</h3>’ ) ); } ?>

    Thread Starter Jones Elizabeth

    (@leonagrey)

    Has anyone got any ideas please?

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