# How can i get data from one field to php function

**URL:** <https://community.gravityforms.com/t/how-can-i-get-data-from-one-field-to-php-function/4151>\
**Category:** Get Help\
**Tags:** custom, gp-copy-cat, gravity-wiz\
**Created:** [March 10, 2020, 8:50am UTC](https://community.gravityforms.com/t/how-can-i-get-data-from-one-field-to-php-function/4151 "2020-03-10T08:50:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![user5e5b8ec44c2f2537](https://avatars.discourse-cdn.com/v4/letter/u/439d5e/32.png) [@user5e5b8ec44c2f2537](https://community.gravityforms.com/u/user5e5b8ec44c2f2537)\
**Post date:** [March 10, 2020, 8:50am UTC](https://community.gravityforms.com/t/how-can-i-get-data-from-one-field-to-php-function/4151/1 "2020-03-10T08:50:00Z")

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I want to get an amount input value from field ID ‘34’ for converting to my local text in field ID ‘37’. eg. In excel can use bahttext function. Now I already have a php function. How can I get a value from field ID ‘34’ to php function and display in field ID ‘37’ before submission?

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**Author:** ![chrishajer](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/chrishajer/32/88_2.png) [@chrishajer](https://community.gravityforms.com/u/chrishajer)\
**Post date:** [March 10, 2020, 3:55pm UTC](https://community.gravityforms.com/t/how-can-i-get-data-from-one-field-to-php-function/4151/2 "2020-03-10T15:55:34Z")

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If you want it displayed live on the page, in field 37 after it is entered in field, 34, you would not use PHP (that is server side) but would you JavaScript or jQuery (that is client side.) Something like this:

> <https://stackoverflow.com/questions/5896287/jquery-passing-value-from-one-input-to-another/5896341#5896341>

There is also a plugin which can do this for you without any code (it uses jQuery):

> **[Gravity Forms Copy Cat - Gravity Wiz](https://gravitywiz.com/documentation/gravity-forms-copy-cat/)**
>
> Easily copy the values from one field to another in your Gravity Form.

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**Author:** ![user5e5b8ec44c2f2537](https://avatars.discourse-cdn.com/v4/letter/u/439d5e/32.png) [@user5e5b8ec44c2f2537](https://community.gravityforms.com/u/user5e5b8ec44c2f2537)\
**Post date:** [March 11, 2020, 10:46am UTC](https://community.gravityforms.com/t/how-can-i-get-data-from-one-field-to-php-function/4151/3 "2020-03-11T10:46:05Z")

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Thank you very much for letting me know!

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**Author:** ![richardw8k](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/richardw8k/32/2354_2.png) [@richardw8k](https://community.gravityforms.com/u/richardw8k)\
**Post date:** [January 5, 2022, 8:51am UTC](https://community.gravityforms.com/t/how-can-i-get-data-from-one-field-to-php-function/4151/4 "2022-01-05T08:51:30Z")

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