I have have a text field for copy-pasting an iFrame code.

<iframe src="https://webpagelink.com/l/3556456/2019-03-06/34576" width="100%" 
height="500" type="text/html" frameborder="0" allowTransparency="true" 
style="border: 0"></iframe>

What I need help with is striping out the URL within the src="" value from the iframe. Is this possible using Twig?

Thank you for your help!

  • 1
    Do you want to remove the src attribute from the iframe HTML code, or do you want to strip everything but the src attribute (e.g. end up with a variable containing the URL in the original src attribute)? Commented Mar 12, 2019 at 23:16
  • Yeah like Mats I'm curious what you're trying to achieve here...
    – Jalen Davenport
    Commented Mar 13, 2019 at 0:59
  • 1
    @MatsMikkelRummelhoff - My client copy/pastes iframe codes in, and now we realized that I need to inject a variable with entry.title into the iframe. So yes, I just need to get the url only. Commented Mar 14, 2019 at 15:08

1 Answer 1


You could write a module that adds a twig extension to return the value of src from the string. That way you get to utilise PHP as per https://stackoverflow.com/questions/17017684/how-to-get-url-from-the-iframe-using-php to get the value.

https://pluginfactory.io/ is a good starting point for adding a module to Craft.

alternative very dirty approach: If the iframe markup is always going to be the same, you could do |replace(), replacing everything before the src=" and everthing after the " width with empty strings. Then replace " width with an empty string.

  • Thank you @mijewe! Never built a plugin, but yes, it will always be generated iframe from a Pardot form every time. I think I will try and get the |replace to work. Commented Mar 13, 2019 at 13:35

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