Jump to content

Matching a variable with a textarea's content?


Recommended Posts

Hi foks

(Not sure if this would make more sense in the dev forum, feel free to move if necessary...)

I am trying to do the following...

In $page->introtext (a textfield with markdown parser)
1. find the link in which the href matches my $current_urlsegment var
2. Change the href to $link_to_overview
3. Add a ".active" CSS class to it
4. Get the whole thing back into the array
5. Output the array.

To add a bit of context:
- This is for a text that contains links to segments of a page. When a user clicks on a link (selects a segment), the surrounding text is faded out, and the selected link turns into a "back to overview" button, so to say. (Sounds even more insane, but could work quite intuitively in practice) 
- So far, I did all of this with js, using a custom data attribute with the current segment to match against the links, but long story short it would be much easier if no js would be involved.

As far as I understand it should be rather simple to do this with regex, but I'm struggling with the logic of it. 

I started with the following:

$text = $page->txt_projects_intro;
$currentsegment = '/projects/' + $sanitizer->pageName($input->urlSegment1) + '/';
$reg_ex_anchor = '/<a [^>]*\bhref\s*=\s*"\K[^"]*' + $currentsegment + '[^"]*/';
$reg_ex_onlyanchorpath = '[^>]*\bhref\s*=\s*"\K[^"]*' + $currentsegment + '[^"]*';
  
  if(preg_match($reg_ex_anchor, $text, ...)) {
	 $content .= preg_replace... // brain melts
			   }
  

Which is when I realized that I have now googled myself way out of my coding league :)

So: Is the above going into the right direction? Is there an easier way, maybe even involving PW selectors that I don't know about?

Cheers Guys!

 

 

Link to post
Share on other sites

I don't follow exactly what you're wanting to do, but some thoughts...

1. Seems like Javascript would be a fine way to do this - JS is going to be involved at some point anyway to do your text fading, "back to overview" link, etc.

2. If you do want to do it in PHP, rather than do the field parsing in your template you could make a simple Textformatter module (apply it after Markdown).

3. Parsing and matching HTML content with PHP is generally easier with a dedicated DOM parser such as Simple HTML DOM than regex.

  • Like 1
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By wwwouter
      Some context: I want to use PHP variables in my CSS (more info below) and found a solution on CSS-tricks that looks fairly elegant and somewhat solid to me. It's pretty simple, I created a file style.css.php inside the site/templates/ directory and load that in my page head. In style.css.php is the following:
      <?php header("Content-type: text/css; charset: UTF-8"); header("Charset:utf-8"); if ($homepage->hero_image) { echo <<<CSS .hero { background: url($homepage->hero_image->url) no-repeat; } CSS; } ?> Because of the following RewriteCond (line 373) in the htaccess file the server sends a 403 error back when the file is requested:
      # Block access to any PHP or markup files in /site/templates/ or /site-*/templates/ RewriteCond %{REQUEST_URI} (^|/)(site|site-[^/]+)/templates($|/|/.*\.(php|html?|tpl|inc))($|/) [NC,OR] (My htaccess file is @version 3.0 and @htaccessVersion 301)
      This is how I thought I could fix that (based on these answers on stack overflow) but it does not work:
      # Block access to any PHP or markup files in /site/templates/ or /site-*/templates/ RewriteCond %{REQUEST_URI} (^|/)(site|site-[^/]+)/templates($|/|/((?!style\.css).)*\.(php|html?|tpl|inc))($|/) [NC,OR] I tested the rule with htacess tester and htaccess check and both worked for me, but on my site I still get a 403 instead of the file.
      I'm working on localhost, using MAMP (not sure if that's relevant).
      A bit more about what I want to do achieve specifically:
      I want to use an image as a background-image for an element, not place it as an image. This image is provided by the user via a field and can therefore change.
      I know I can achieve this like this:
      echo "<section class='hero' style='background-image: url($page->hero_image->url)'></section>"; But I would prefer a method other than inlining because of scalability and cleanliness. (I admit the extra link in the page head is not ideal either)
       
      P.s. this is my first post here, I hope it's submitted in the right forum and my explanation is clear.
    • By NorbertH
      I really would like to see a sanitzer that uses a regex!!
      $sanitize->regex($value, $regex); Simply return empty if the value doesn't match.
      It would be even better if we got an extra option for replacements and or callback functions.  If i have seen it right, there are even sanitizer that use HTMLpurifier so why is there no regex implemented as its one of PHP's most powerfull features ?
      Sanitizer since PW 2.6.14 integrates nicely whith $input and so on , so using a seperate preg_match()/preg_replace()  isn't as elegant as using sanitizer.
       
×
×
  • Create New...