I have comments enabled on my site and I require users to enter at least 30 characters to publish their comments (Just to get some value because they usualy just submitted "I like it") But some users now use simple technique to overcome this and enter e.g.:
"I like it. asdsdf dfdsfsdf tt erretrt re"
As you can see the rest of the text is nonsense. Is there a way (algorithm) how to filter these comments out in PHP ?
分享 Get a dictionary of English words from the net. Check the post has a certain % (maybe 50%? maybe 70%?) of words that are in the dictionary. You can't look for 100%, or names and technical jargon will not be found.
users will get around this by entering.
I like it ....................................................
So then add logic to parse out punctuation.
Then users will get around it with
I like it. the the the the the the the the
Then you will need to parse it for proper English grammer
Then no one will be able to post on your site becuase it has too many rules.
Better suggestion: Add comment moderation. Dumb posts get downvoted and go away. Good posts stay.
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