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Calculate age from date

Gravity Support Forums » Plugin Support » Gravity Forms

  1. placson
    Member

    Is there a way to calculate the person's age based on a date field (MM/DD/YYYY)? I'd like to have the user enter their date of birth and after entering allow a hidden field or read-only field appear that shows their calculated age.

    Posted 12 years ago on Wednesday October 12, 2011 | Permalink

  2. Carl Hancock
    Administrator

    This isn't currently a built in feature. It could be accomplished as a customization.

    - Add a hidden field to your form and position it below the date field
    - Edit this hidden field and give it a Field Label of "Age"
    - Save your form

    Now use the gform_pre_submission hook and some custom code to then read the value of the date field, calculate the age, and store it in your hidden field.

    Documentation for the gform_pre_submission hook can be found here:

    http://www.gravityhelp.com/documentation/page/Gform_pre_submission

    Posted 12 years ago on Wednesday October 12, 2011 | Permalink