wp_admin_css │ filter-hook │ WP 2.3.0

Filters the stylesheet link to the specified CSS file.

If the site is set to display right-to-left, the RTL stylesheet link will be used instead.

Usage

add_filter( 'wp_admin_css', 'wp_kama_admin_css_filter', 10, 2 );

/**
 * Function for `wp_admin_css` filter-hook.
 * 
 * @param string $stylesheet_link HTML link element for the stylesheet.
 * @param string $file            Style handle name or filename (without ".css" extension) relative to wp-admin/.
 *
 * @return string
 */
function wp_kama_admin_css_filter( $stylesheet_link, $file ){

	// filter...
	return $stylesheet_link;
}

$stylesheet_link(string)

HTML link element for the stylesheet.

$file(string)

Style handle name or filename (without ".css" extension) relative to wp-admin/.
Default: 'wp-admin'

Changelog

Where the hook is called

echo apply_filters( 'wp_admin_css', $stylesheet_link, $file );

echo apply_filters( 'wp_admin_css', $rtl_stylesheet_link, "$file-rtl" );

Where the hook is used in WordPress