gform_value_pre_duplicate_check

• Description
• Usage
• Parameters
• Examples
• Sanitize an email
• Placement
• Source Code
• Since

Description

The gform_value_pre_duplicate_check The filter allows for the modification of the field value just before the duplicate check.

Usage

Applies to all forms:

add_filter( 'gform_value_pre_duplicate_check', 'your_function_name', 10, 3);

Parameters

• $value string or array
  The value being checked against existing entries for duplicates.
• $field GF_Field
  The field being checked for duplicates.
• $form_id int
  The ID of the form being checked for duplicates.

Examples

Sanitize an email

Sanitize emails and consider values like [email protected] the same as [email protected]

add_filter( 'gform_value_pre_duplicate_check', function ( $value, $field, $form_id ) {
	if ( $field->type !== 'email' ) {
		return $value;
	}
	$value = is_array( $value ) ? rgar( $value, 0, '' ) : $value;
	$value = strtolower( $value );
	if ( strpos( $value, '@gmail.com' ) === false || strpos( $value, '+' ) === false ) {
		return $value;
	}
	$username = str_replace( '@gmail.com', '' , $value );
	$username = substr( $username, 0 , strpos( $username, '+' ) );
	return $username . '@gmail.com';
}, 10, 3 );

Placement

This code can be used in the functions.php file of the active theme, a custom functions plugin, a custom add-on, or with a code snippets plugin.

See also the PHP section in this article: Where Do I Put This Code?

Source Code

This filter is located in /form_display.php

Since

The filter was added in Gravity Forms 2.9.2