如何使用PHPMailer发送包含CSS的HTML邮件？

我在使用PHPMailer发送HTML邮件时遇到问题.我制作了一个Smarty模板,我从中获得了所有的HTML代码,但是当我发送邮件时,我收到的邮件没有包含CSS(它只是背景颜色,字体或类似的东西).在PHPMailer中,我设置邮件是HTML.

有没有办法发送包含CSS的HTML邮件？

有一种方式......

    $body = <<< YOUR_HTML_WITH_CSS_STYLE_TAGS


    


    

        some html
    
    

        

        
    


YOUR_HTML_WITH_CSS_STYLE_TAGS;
    $doc = new DOMDocument();
    @$doc->loadHTML($body);
    $xpd = new DOMXPath($doc);
    0&&$node = new DOMElement();
    $result = $xpd->query('//img');
    foreach($result as $node){
        $attr = $node->getAttribute('src');
        $re = '/(http:\/\/.*?)?(\/.*+)/i';
        if(preg_match_all($re, $attr, $matches)){
            if(!empty($matches[1][0])&&0)
                continue;
            $attr = 'http://'.$_SERVER['HTTP_HOST'].$matches[2][0];
        }
        $node->setAttribute('src',$attr);
    }
    false&&$node=new DOMElement()&&$child=new DOMElement();
    $result = $xpd->query('//style/..');
    foreach($result as $node){
        foreach($node->childNodes as $child){
            if(strtolower($child->nodeName)=='style'){
                $node->removeChild($child);
                $css = $child->textContent;
                $re = '/(.*?)\{([^}]+)\}/';
                if(preg_match_all($re, $css, $matches)){
                    foreach($matches[1] as $idx=>$css_selector){
                        $css_text = $matches[2][$idx];
                        $css_text = preg_replace('/\s+/',' ',$css_text);
                        $css = new CSSQuery($doc);
                        foreach($css->query($css_selector) as $selected_node){
                            $style = $selected_node->getAttribute('style');
                            $selected_node->setAttribute('style', $style?$css_text:$style.';'.$css_text);
                        }
                    }
                }
            }
        }
    }
    $body = $doc->saveHTML();

该代码将在$ body中生成HTML输出,如下所示:

    

        some html
    
    

        

        
    

该CSSQuery课程可以在phpclasses.org找到.此实现基于以下事实:大多数Web邮件仅允许通过内联标记属性样式添加样式,而不是通过样式标记或链接标记.

它非常有限,并且由于正则表达式具有有限的语法,因此它很简单,但它仍然比您自己在每个HTML标记中使用内联样式属性更好.