Regex extract variables from [shortcode]

drupal, php, regex, shortcode

Solution

This will give you what you want.

$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);

In anticipation of the next challenge you will face with processing short codes you can use preg_replace_callback to replace the short tag data with it's resultant markup.

$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;

Problem

After migrating some content from WordPress to Drupal, I've got som shortcodes that I need to convert: String content: 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. I need to find all variables within the shortcode [sublimevideo ...] and turn it into an array: ``` 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" ) ``` And preferably handle multiple instances of the shortcode. I guess it can be done with preg_match_all() but I've had no luck.

Original source