Question

将一些内容从WordPress迁移到Drupal后，我有了需要转换的som短代码：

字符串内容：

不相关的tekst ...... [sublimevideo class =“sublime” 海报= “http://video.host.com/_previews/600x450/sbx-60025-00-da-ANA.png” SRC1 = “http://video.host.com/_video/H.264/LO/sbx-60025-00-da-ANA.m4v” SRC2 = “（HD）http://video.host.com/_video/H.264/HI/sbx-60025-00-da-ANA.m4v” width =“560”height =“315”] ..更无关紧要的文字。

我需要找到短代码[sublimevideo ...]中的所有变量并将其转换为数组：

Array (
    class => "sublime"
    poster => "http://video.host.com/_previews/600x450/sbx-60025-00-da-FMT.png"
    src1 => "http://video.host.com/_video/H.264/LO/sbx-60025-00-da-FMT.m4v"
    src2 => "(hd)http://video.host.com/_video/H.264/HI/sbx-60025-00-da-FMT.m4v"
    width => "560"
    height => "315"
)

最好处理短代码的多个实例。

我想可以用preg_match_all（）完成，但我没有运气。

Answer 1

这会给你你想要的。

$data = 'Irrelevant tekst... [sublimevideo class="sublime" poster="http://video.host.com/_previews/600x450/sbx-60025-00-da-ANA.png" src1="http://video.host.com/_video/H.264/LO/sbx-60025-00-da-ANA.m4v" src2="(hd)http://video.host.com/_video/H.264/HI/sbx-60025-00-da-ANA.m4v" width="560" height="315"] ..more irrelevant text.';

$dat = array();
preg_match("/\[sublimevideo (.+?)\]/", $data, $dat);

$dat = array_pop($dat);
$dat= explode(" ", $dat);
$params = array();
foreach ($dat as $d){
    list($opt, $val) = explode("=", $d);
    $params[$opt] = trim($val, '"');
}

print_r($params);

预计您将面临处理短代码的下一个挑战，您可以使用preg_replace_callback将短标签数据替换为其结果标记。

$data = 'Irrelevant tekst... [sublimevideo class="sublime" poster="http://video.host.com/_previews/600x450/sbx-60025-00-da-ANA.png" src1="http://video.host.com/_video/H.264/LO/sbx-60025-00-da-ANA.m4v" src2="(hd)http://video.host.com/_video/H.264/HI/sbx-60025-00-da-ANA.m4v" width="560" height="315"] ..more irrelevant text.';

function processShortCode($matches){
    // parse out the arguments
    $dat= explode(" ", $matches[2]);
    $params = array();
    foreach ($dat as $d){
        list($opt, $val) = explode("=", $d);
        $params[$opt] = trim($val, '"');
    }
    switch($matches[1]){
        case "sublimevideo":
            // here is where you would want to return the resultant markup from the shorttag call.
             return print_r($params, true);        
    }

}
$data = preg_replace_callback("/\[(\w+) (.+?)]/", "processShortCode", $data);
echo $data;

Answer 2

您可以使用以下RegEx来匹配变量：

$regex = '/(\w+)\s*=\s*"(.*?)"/';

我建议首先匹配sublimevideo短代码并将其转换为带有以下RegEx的字符串：

$pattern = '/\[sublimevideo(.*?)\]/';

为了获得正确的数组键，我使用了以下代码：

// $string is string content you specified
preg_match_all($regex, $string, $matches);

$sublimevideo = array();
for ($i = 0; $i < count($matches[1]); $i++)
    $sublimevideo[$matches[1][$i]] = $matches[2][$i];

返回以下数组:(您请求的数组）

Array
(
    [class] => sublime
    [poster] => http://video.host.com/_previews/600x450/sbx-60025-00-da-ANA.png
    [src1] => http://video.host.com/_video/H.264/LO/sbx-60025-00-da-ANA.m4v
    [src2] => (hd)http://video.host.com/_video/H.264/HI/sbx-60025-00-da-ANA.m4v
    [width] => 560
    [height] => 315
)

Answer 3

这是我的解释，我来自WordPress背景，并试图重新创建自定义php项目的设置。

它将处理类似[PHONE] [PHONE abc =“ 123”]等

唯一可以解决的是WordPress样式[HERE]到[HERE]

用于构建可用短代码列表的功能


// Setup the default global variable

function create_shortcode($tag, $function)
{
    global $shortcodes;
    $shortcodes[$tag] = $function;
}

分别定义短代码，例如[IFRAME url =“ https://www.bbc.co.uk”]：


/**
 * iframe, allows the user to add an iframe to a page with responsive div wrapper
 */
create_shortcode('IFRAME', function($atts) {

    // ... some validation goes here

    // The parameters that can be set in the shortcode
    if (empty($atts['url'])) {
        return false;
    }

    return '
    <div class="embed-responsive embed-responsive-4by3">
      <iframe class="embed-responsive-item" src="' . $atts['url'] . '">
      </iframe>
    </div>';
});

然后，当您想通过短代码处理传递html块时，请执行以下操作... handle_shortcodes($some_html_with_shortcodes);

function handle_shortcodes($content)
{

    global $shortcodes;

    // Loop through all shortcodes
    foreach($shortcodes as $key => $function){

        $matches = [];

        // Look for shortcodes, returns an array of ALL matches
        preg_match_all("/\[$key([^_^\]].+?)?\]/", $content, $matches, PREG_UNMATCHED_AS_NULL);

        if (!empty($matches))
        {
            $i = 0;
            $full_shortcode = $matches[0];
            $attributes = $matches[1];

            if (!empty($attributes))
            {
                foreach($attributes as $attribute_string) {

                    // Decode the values (e.g. &quot; to ") 
                    $attribute_string = htmlspecialchars_decode($attribute_string);

                    // Find all the query args, looking for `arg="anything"`
                    preg_match_all('/\w+\=\"(.[^"]+)\"/', $attribute_string, $query_args);

                    $params = [];
                    foreach ($query_args[0] as $d) {

                        // Split the
                        list($att, $val) = explode('=', $d, 2);

                        $params[$att] = trim($val, '"');
                    }

                    $content = str_replace($full_shortcode[$i], $function($params), $content);
                    $i++;
                }
            }
        }
    }
    return $content;
}

我已经从工作代码中摘录了这些示例，因此希望它是可读的，并且没有我们的设置专有的任何其他功能。

Answer 4

正如this answer中所述，我建议让WordPress使用get_shortcode_regex()函数为您完成工作。

 $pattern = get_shortcode_regex();
 preg_match_all("/$pattern/",$wp_content,$matches);

这将为您提供一个易于使用的数组，并在您的内容中显示各种短代码和附属属性。它不是最明显的数组格式，因此请打印并查看，以便了解如何操作所需的数据。

正则表达式从[shortcode]中提取变量

4 个答案: