public static function replaceCss($cssFile)
{
if (file_exists($cssFile)) {
$content = file_get_contents($cssFile);
if ($content = str_replace('fonts.googleapis.com', 'fonts.css.network', $content)) {
file_put_contents($cssFile, $content);
echo "'{$cssFile}' google api replace success.\n";
}
} else {
echo "'{$cssFile}' file is not exists.\n";
}
}