Need help with word string length

Can someone tell me how to return let say 100 words and not all the words from my database table? I am not sure how to accomplish this in Wappler or how to use the php strlen() statement in Wappler to accomplish this or whatever method is used.

I just want to return only the first 100 words from my comments table in a Card then have a read more button that will show all the comments once click. Thanks
@George @Teodor @Hyperbytes

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