Get field by custom name

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Hi Gerben. If you log the $_POST in your code, you will see what is available. Here’s an example from one of my forms:

(
    [input_79c364343a3ecd91f73e3c13f4608320] => 03AEkXODDTNpn8pzuMoeKaBiKEP0qzxiZCxWpNXRnQkyO_KuHaKiE-TxMre_i5-AOyP_BY03es_6SYBixfwynwvFm_eXWCawRRvJ4nILR5S6tqz16CRwSqiMbOi19_cU-r0pM_OwW2N0DH8Fsh69bsUZ6m6NMyxag7banZjLShsPicFJFs1IaxR4ya0TqORjVYqeAeSg1w8L_4O636uJHxTMEvTzIB_M_1jevHi4-Op7wWnCa2ZEDn-HMi6HjgRymfkSOuEz_hsRzK72GMU2qR6DnbI8fYsWp8fmY4_g3FRwue20xJAEa1rFUWT4TfOO3GfNah79tG96i1t_n1FmkFRvpFCvRY5uu2TCl26Pa-D6KOQreEayjWoCcYVhkQisQwlx_NUAPOQf1hRAiQq6s10XFe9BvXS2fCxpyOZlpYepwirlVrBfkOHv0wZsDR79okGukNDanCGZltLWvAX8H0zo0ZvyftdZnG0s1IAroBS7NSmQlT7q46HpexkGYTAehO0kW6gjcw3JDfsg1J392tY1DwrPM9C0tffA
    [input_4] => Veda
    [input_6] => Bartlett
    [input_33] => Hines Blake Trading
    [input_10_2] => WEBSITE
    [input_10_3] => BUSINESS CARDS
    [input_10_8] => ILLUSTRATION
    [input_10_9] => EMAIL SIGNATURE
    [input_10_11] => SOCIAL MEDIA
    [input_10_15] => LETTERHEAD
    [input_10_16] => VEHICLE GRAPHICS
    [input_10_17] => HOSTING
    [input_10_18] => SEO
    [input_10_21] => BRAND NAMING
    [input_10_22] => SIGNAGE
    [input_10_23] => OTHER
    [input_11] =>
    [input_14] => Large e-commerce, many products, complex functionality
    [input_29] => 604
    [input_30] => 102
    [input_36] => 3 - 6 months
    [input_39] => Eveniet ipsum natus
    [input_42] => Building signage
    [input_22] => fadysybov@mailinator.com
    [input_23] => +1 (372) 366-1231
    [input_24_2] => Leave this button selected to join our mailing list. We send emails once a month with exclusive offers, tips, and our latest work.
    [input_24_3] => 73
    [is_submit_768] => 1
    [gform_submit] => 768
    [gform_unique_id] => 8f4b554e
    [state_768] => WyJ7XCIyNC4xXCI6XCJiNDBjMDhlNjgzNWE0Y2MwNWJkYzQ4ZTlhYzk0ZGRlM1wiLFwiMjQuMlwiOlwiZTJmNzU0ZDQwYzI2ODA3NTU2YmEwZGI0YWEyYzFhNzhcIixcIjI0LjNcIjpcIjg0ZTFmMTk0ZDQxMzY4MGVhMjhhYTNkMGFlMWUxNjdkXCJ9IiwiMzlhZDJjNDk1NDRlMmM4MTI2NTNiMmM5OTAxNjljZWQiXQ==
    [gform_target_page_number_768] => 0
    [gform_source_page_number_768] => 1
    [gform_field_values] =>
    [gform_uploaded_files] => {\"input_16\":[{\"temp_filename\":\"8f4b554e_input_16_exAG9onGKC4e3gKF_o_1gidoom9rh181v6e1nj914aa10ahk.png\",\"uploaded_filename\":\"1150-April-6.png\"},{\"temp_filename\":\"8f4b554e_input_16_kY5C4Ulr2lLqiqpb_o_1gidoo9f877h14v714i71qio1e9jf.pdf\",\"uploaded_filename\":\"E-Learning-Days_-District-Expectations-for-Students.pdf\"}]}
)

You can see that only the input IDs are available. But the form ID is available in [state_768]. With that, you could get the $form object, like this:

$result = GFAPI::get_form( $form_id );

Documentation:

You could then loop through the $form object and see what it contains. Here’s an example for a form object. This is for form 768 also:

Now, with the form ID and the form object, you could do something like:

foreach ( $form['fields'] as &$field ) {
	// check each field for the existence of the cssClass "custom__interest"
	if ( strpos( $field->cssClass, 'custom__interest' ) === false ) {
		continue; // i.e. skip the field
	}
	else {
		// do something;
	}
}

I gave a field a custom CSS Class name of custom__interest. This code example will loop through the form object looking for that custom CSS Class name and then perform code on that field. I’m not sure if that is easier than the field IDs for you, but hopefully this approach will help you.