Check textbox / required field
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I’m creating a form. I have one textbox where the user can type a name. That name shall be looked in mysql to see if it already exist. How can this be done with ninja forms and wordpress?
I need to check in my mysql database to check what the user typed in the textbox. If its in the database, ninja forms should display a red star on that field, indicating the user need to change name.
How can this be done?
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