Using wp_admin_css_uri to get the WordPress admin CSS URI

The wp_admin_css_uri function in WordPress is a built-in function that is designed to return the URL of an admin CSS file. This function is typically used when there is a need to reference or link to a specific CSS file located in the WordPress admin directory.

By using the wp_admin_css_uri function, developers can retrieve the URL of a CSS file in the admin directory without having to manually construct the URL. This can be useful in situations where the exact location of the WordPress installation is unknown or may vary, as the function automatically determines the correct URL based on the current WordPress configuration.

It is important to note that the wp_admin_css_uri function only returns the URL of the CSS file, and does not perform any actions such as enqueuing the CSS file or adding it to a web page. Any such actions would need to be performed separately by the developer using appropriate WordPress functions.

Parameters

The wp_admin_css_uri function in WordPress accepts a single parameter. This parameter is:

  • $file (string) – This is an optional parameter. Its default value is ‘wp-admin’. It represents the filename relative to wp-admin/, excluding its “.css” extension.

Return Value

The wp_admin_css_uri function returns a string. This string is the result of the function’s operation based on the input parameters.

If the function does not receive any parameters, it operates with the default values and returns the corresponding output.

Examples

How to Load a CSS File in the Admin Area Using wp_admin_css_uri

$file = 'my-admin-style';
$admin_css_url = wp_admin_css_uri($file);

if (is_admin()) {
 echo '<link rel="stylesheet" href="'. esc_url($admin_css_url) .'">';
}

In this example, the wp_admin_css_uri function is used to conditionally load a CSS file in the WordPress admin area. The function gets the URL of the CSS file, and if the current user is viewing an admin page (checked by the is_admin() function), the CSS file is included in the page using a link tag.

Conclusion

The wp_admin_css_uri function in WordPress is a built-in function that returns the URL of the specified CSS file for the WordPress admin interface. The primary use of this function is to facilitate the customization and modification of the WordPress admin interface’s styles, allowing developers to create a unique and tailored experience for users. By utilizing the wp_admin_css_uri function, developers can easily locate and reference the necessary CSS files, making the process of customizing the WordPress admin interface more streamlined and efficient.

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