Adding theme support for a custom header image

Question

Adding theme support for a custom header image

henrywright

2022年1月7日 16:04

I'm using add_theme_support( 'custom-header', $defaults ); to support custom header images in my theme. The $defaults are described in the Custom Headers article

$defaults = array(
    'default-image'          = '',
    'random-default'         = false,
    'width'                  = 0,
    'height'                 = 0,
    'flex-height'            = false,
    'flex-width'             = false,
    'default-text-color'     = '',
    'header-text'            = true,
    'uploads'                = true,
    'wp-head-callback'       = '',
    'admin-head-callback'    = '',
    'admin-preview-callback' = '',
);

There is no explanation in the Codex for the following. What do they mean?

wp-head-callback
admin-head-callback
admin-preview-callback

Topic add-theme-support custom-header php Wordpress

Category Web

Nilambar Sharma · Accepted Answer · 2014年6月19日 11:05

Those are name of callback function which would be enabled for custom header.

For example: if custom_function is assigned to 'wp-head-callback' then, there would be an action call like:

add_action('wp_head','custom_function')

custom_function is the function you need to define.

Adding theme support for a custom header image

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