Format Phone Numbers: Gravity Forms

Sure, I can help you with that! You can use the following WordPress function to achieve your goal of formatting phone numbers in Gravity Forms before they are written to the database. This function uses the gform_entry_pre_save filter hook to modify the phone number format:

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function format_phone_numbers( $entry, $form ) {
    // Define the phone field IDs that you want to format
    $phone_field_ids = array( 1, 2, 3 ); // Replace with actual field IDs

    foreach ( $phone_field_ids as $field_id ) {
        if ( isset( $entry[ $field_id ] ) ) {
            $phone_number = $entry[ $field_id ];
            
            // Remove any non-digit characters from the phone number
            $phone_number = preg_replace( '/\D/', '', $phone_number );

            // Check if the phone number is in a valid format
            if ( strlen( $phone_number ) === 10 ) {
                // Format the phone number with a dash between area code and the rest
                $formatted_phone = substr( $phone_number, 0, 3 ) . '-' . substr( $phone_number, 3, 3 ) . '-' . substr( $phone_number, 6 );
                $entry[ $field_id ] = $formatted_phone;
            }
        }
    }

    return $entry;
}

add_filter( 'gform_entry_pre_save', 'format_phone_numbers', 10, 2 );

Replace the $phone_field_ids array with the actual field IDs of the phone fields in your form that you want to format. You can find these field IDs by inspecting the HTML source of your form.

This function works by first removing any non-digit characters from the phone number and then checking if it's a 10-digit number. If it's a valid phone number, it formats it with dashes between the area code and the rest of the number.

Remember to place this code in your theme's functions.php file or a custom plugin. Always make sure to test the code on a development/staging environment before applying it to a live website.

Of course! Here's the modified function that automatically scans each field and only applies the formatting to Phone fields:

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function format_phone_numbers( $entry, $form ) {
    foreach ( $form['fields'] as $field ) {
        if ( $field['type'] === 'phone' && isset( $entry[ $field['id'] ] ) ) {
            $phone_number = $entry[ $field['id'] ];
            
            // Remove any non-digit characters from the phone number
            $phone_number = preg_replace( '/\D/', '', $phone_number );

            // Check if the phone number is in a valid format
            if ( strlen( $phone_number ) === 10 ) {
                // Format the phone number with a dash between area code and the rest
                $formatted_phone = substr( $phone_number, 0, 3 ) . '-' . substr( $phone_number, 3, 3 ) . '-' . substr( $phone_number, 6 );
                $entry[ $field['id'] ] = $formatted_phone;
            }
        }
    }

    return $entry;
}

add_filter( 'gform_entry_pre_save', 'format_phone_numbers', 10, 2 );

This function iterates through each field in the form and checks if the field type is 'phone'. If it is, then it proceeds with the formatting logic. This way, you don't need to manually specify the field IDs of the phone fields. Just add this code to your theme's functions.php file or a custom plugin as before.

Certainly! Here's the code using an anonymous function within the filter:

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add_filter( 'gform_entry_pre_save', function( $entry, $form ) {
    foreach ( $form['fields'] as $field ) {
        if ( $field->type === 'phone' && isset( $entry[ $field->id ] ) ) {
            $phone_number = $entry[ $field->id ];
            
            // Remove any non-digit characters from the phone number
            $phone_number = preg_replace( '/\D/', '', $phone_number );

            // Check if the phone number is in a valid format
            if ( strlen( $phone_number ) === 10 ) {
                // Format the phone number with a dash between area code and the rest
                $formatted_phone = substr( $phone_number, 0, 3 ) . '-' . substr( $phone_number, 3, 3 ) . '-' . substr( $phone_number, 6 );
                $entry[ $field->id ] = $formatted_phone;
            }
        }
    }

    return $entry;
}, 10, 2 );

This code uses an anonymous function directly within the add_filter call, which is a concise way to define the filter logic. Just like the previous examples, this code iterates through each field, checks if it's a phone field, and applies the formatting logic if needed.

Sure! To apply the formatting only to Phone fields that have the Phone Format set to "Domestic US/Canada" but not "International", you can modify the code as follows:

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add_filter( 'gform_entry_pre_save', function( $entry, $form ) {
    foreach ( $form['fields'] as $field ) {
        if ( $field->type === 'phone' && isset( $entry[ $field->id ] ) ) {
            $phone_number = $entry[ $field->id ];

            if ( $field->phoneFormat === 'standard' ) {
                // Remove any non-digit characters from the phone number
                $phone_number = preg_replace( '/\D/', '', $phone_number );

                // Check if the phone number is in a valid format
                if ( strlen( $phone_number ) === 10 ) {
                    // Format the phone number with a dash between area code and the rest
                    $formatted_phone = substr( $phone_number, 0, 3 ) . '-' . substr( $phone_number, 3, 3 ) . '-' . substr( $phone_number, 6 );
                    $entry[ $field->id ] = $formatted_phone;
                }
            }
        }
    }

    return $entry;
}, 10, 2 );

This code includes an additional condition if ( $field->phoneFormat === 'standard' ) to make sure the formatting is only applied to Phone fields with the "Domestic US/Canada" format and not the "International" format. This should help you achieve the desired behavior.

I apologize for the confusion. You're right, the "gform_entry_pre_save" filter doesn't exist. Let's use the "gform_save_field_value" filter instead. Here's the updated code:

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add_filter( 'gform_save_field_value', function( $value, $entry, $field, $form ) {
    if ( $field->type === 'phone' && $field->phoneFormat === 'standard' ) {
        $phone_number = $value;

        // Remove any non-digit characters from the phone number
        $phone_number = preg_replace( '/\D/', '', $phone_number );

        // Check if the phone number is in a valid format
        if ( strlen( $phone_number ) === 10 ) {
            // Format the phone number with a dash between area code and the rest
            $formatted_phone = substr( $phone_number, 0, 3 ) . '-' . substr( $phone_number, 3, 3 ) . '-' . substr( $phone_number, 6 );
            $value = $formatted_phone;
        }
    }

    return $value;
}, 10, 4 );

This code uses the "gform_save_field_value" filter to modify the field value before it is saved to the database. It checks if the field is of type "phone" and has the "Domestic US/Canada" format before applying the formatting logic. Replace the previous code with this one in your theme's functions.php file or a custom plugin.