我倾向于使用wp_enqueue_style, 当我想阻止缓存时，会在版本中添加一些内容。。

$ver = \'\';
wp_enqueue_style( \'theme_style\', get_bloginfo(\'stylesheet_url\'), false, $ver );

$ver = time();

这是我从一个未发布的CDN插件中获得的代码。它将自动替换排队函数使用的ver query\\u var和文件时间：

class CDN_VersionAssets {

    private $default_version = \'\';
    private $root_url;

    public function __construct() {
        $this->root_url = site_url();
    }

    public function initialize() {
        add_filter(\'style_loader_src\', array($this, \'replace_version\'), 10);
        add_filter(\'script_loader_src\', array($this, \'replace_version\'), 10);
        add_filter(\'stylesheet_uri\', array($this, \'replace_version\'), 10);
    }

    public function on_template_redirect() {
        $this->default_version = @filemtime(get_stylesheet_directory().\'/style.css\');
    }

    private function get_version($url) {
        if(0 === strpos($url, $this->root_url)) {
            $parts = parse_url($url);
            $file_path = str_replace(site_url(\'/\'), ABSPATH, $parts[\'scheme\'].\'://\'.$parts[\'host\'].$parts[\'path\']);
            if( !($version = @filemtime($file_path)) ) {
                $version = $this->default_version;
            }
            return $version;
        }
        return false;
    }

    public function replace_version($src) {
        if( $new_version = $this->get_version($src) ) {
            return add_query_arg(\'ver\', $new_version, $src);
        }
        return $src;
    }
}
add_action(\'init\', array(new CDN_VersionAssets(), \'initialize\'));

我F YoU\'D PREFER NoT To UsE THE sTA.NDA.RD sTYLE.Css F我LE FoR YoUR WoRDPREss THEME\'s Css CA.CHE-BUsT我NG TECHN我QUE, HERE\'s A. CoMPLETE WoRK我NG CoDE E十、A.MPLE:

<?PHP&#十、A.;    // PRE五、ENT Css CA.CH我NG&#十、A.;    $Css_L我NK = GET_sTYLEsHEET_D我RECToRY_UR我() . \'/Css/sCREEN.Css\';&#十、A.;    $Css_F我LE = GET_sTYLEsHEET_D我RECToRY() . \'/Css/sCREEN.Css\';&#十、A.;?>&#十、A.;&#十、A.;<L我NK HREF=“”<?PHP ECHo $Css_L我NK . \'?\' . F我LEMT我ME( $Css_F我LE ); ?>“” />&#十、A.;

WoULD REsULT 我N THE FoLLoW我NG HTML oUTPUT:

<L我NK HREF=“”HTTP://E十、A.MPLE.CoM/WP-CoNTENT/THEMEs/THEME-NA.ME/Css/sCREEN.Css?1.3.4.93.8.95.3.0“” />&#十、A.;

FoR TERsENEss oF TH我s E十、A.MPLE, 我 E十、CLUDED REL=“”sTYLEsHEET“” TYPE=“”TE十、T/Css“” oN THE <L我NK> ELEMENT, so BE sURE To A.DD THosE A.TTR我BUTEs To YoUR F我NA.L MA.RKUP.

我为这样的工作编写了自己的小函数作为插件。它有两个参数，需要追加的路径和日期格式。下面是一个示例用法。。。

<?php echo cache_busting_path(\'/css/reset.css\', \'Y-m-d_g:i:s\'); ?>

代码如下：

    <?php
/*
        Plugin Name: Cache Busting Path
        Description: Function that returns a path with a cache-busting query string based on the last time the file was updated.
        Version: 1.0
        Author: Russell Heimlich
        Author URI: http://www.russellheimlich.com/blog/
        License: GPL2
    */

        function cache_busting_path($path, $time_format = \'U\') {
            if( $path[0] != \'/\' ) { //Checks for the first character in $path is a slash and adds it if it isn\'t. 
                $path = \'/\' . $path;
            }
            return get_bloginfo(\'template_url\') . $path . \'?\' . date($time_format, filemtime( get_theme_root() . \'/\' . get_template() . $path ) );
        }
?>

简单：使用URl加载样式和路径以获取filemtime():

wp_register_style(
    \'handle\',
    get_stylesheet/template_directory_uri().\'/path/to/your/stylesheet.css\',
    array( \'possible_dependency\' ),
    filemtime( plugin_dir_path( __FILE__ ).\'path/to/your/stylesheet.css\' )
);

<link href="http://example.com/wp-content/themes/path/to/your/stylesheet.css?1379012967924">