Load files content [closed]

Question

I would like to load a css file in my Wordpress plugin by php. First I tried file_get_contents:

$stylesheet = file_get_contents(plugins_url('assets/css/fonts.css', __FILE__ ));

But than I get this error:

failed to open stream: HTTP request failed! HTTP/1.1 401 Unauthorized

I noticed that one has to enable Allow_url_fopen in php.ini (but I also read about this being a security risk).

Is there a WordPress function to load e.g. a txt file and store its content in a variable?

EDIT: I would like to parse a CSS file and get all its font-families.

<?php
function my_fonts() {
    $stylesheet = file_get_contents('../assets/css/fonts.css');
    $rows       = explode("\n", $stylesheet);
    array_shift($rows);

    $fonts = array();

    foreach($rows as $row => $data)
    {
        // Find all available font-families
        $regex = '#font\-family:(.*)#';
        preg_match($regex, $data, $output);
        if($output){
            $font = str_replace(array('font-family:', '\'', ';'), '', $output[0]);
            $fonts[] = $font;
        }
    }

    // Remove dublicates
    $fonts = array_unique($fonts);

    print_r($fonts);
}
?>

Answer 1

You should use WordPress's built in function wp_enqueue_style for loading styles.

/**
 * Proper way to enqueue scripts and styles
 */
function wpdocs_theme_name_scripts() {
    wp_enqueue_style( 'style-name', get_stylesheet_uri() );
    wp_enqueue_script( 'script-name', get_template_directory_uri() . '/js/example.js', array(), '1.0.0', true );
}
add_action( 'wp_enqueue_scripts', 'wpdocs_theme_name_scripts' );

https://developer.wordpress.org/reference/functions/wp_enqueue_style/

Answer 2

Looks like I blocked my self out… I had an .htaccess with password protection running that prevented the script from accessing the file.