WordPress开发手册:add_custom_background()

函数原型

add_custom_background( callable $wp_head_callback = ”, callable $admin_head_callback = ”, callable $admin_preview_callback = ” )

函数描述

是否弃用

Warning: This function has been deprecated. Use add_theme_support() instead.

函数参数

$wp_head_callback
callable
Optional

Call on the 'wp_head' action.

Default: ''

$admin_head_callback
callable
Optional

Call on custom background administration screen.

Default: ''

$admin_preview_callback
callable
Optional

Output a custom background image div on the custom background administration screen. Optional.

Default: ''

函数返回值

函数位置

函数源码

function add_custom_background( $wp_head_callback = '', $admin_head_callback = '', $admin_preview_callback = '' ) {
	_deprecated_function( __FUNCTION__, '3.4.0', 'add_theme_support( \'custom-background\', $args )' );
	$args = array();
	if ( $wp_head_callback )
		$args['wp-head-callback'] = $wp_head_callback;
	if ( $admin_head_callback )
		$args['admin-head-callback'] = $admin_head_callback;
	if ( $admin_preview_callback )
		$args['admin-preview-callback'] = $admin_preview_callback;
	return add_theme_support( 'custom-background', $args );
}

源码链接

WordPress
Github

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