The PHP OCR SDK supports the W9 API.

Using the sample below, we are going to illustrate how to extract the data that we want using the OCR SDK.
W9 sample

Quick-Start

<?php

use Mindee\Client;
use Mindee\Product\Us\W9\W9V1;

// Init a new client
$mindeeClient = new Client("my-api-key");

// Load a file from disk
$inputSource = $mindeeClient->sourceFromPath("/path/to/the/file.ext");

// Parse the file
$apiResponse = $mindeeClient->parse(W9V1::class, $inputSource);

echo $apiResponse->document;

Output (RST):

########
Document
########
:Mindee ID: d7c5b25f-e0d3-4491-af54-6183afa1aaab
:Filename: default_sample.jpg

Inference
#########
:Product: mindee/us_w9 v1.0
:Rotation applied: Yes

Prediction
==========

Page Predictions
================

Page 0
------
:Name: Stephen W Hawking
:SSN: 560758145
:Address: Somewhere In Milky Way
:City State Zip: Probably Still At Cambridge P O Box CB1
:Business Name:
:EIN: 942203664
:Tax Classification: individual
:Tax Classification Other Details:
:W9 Revision Date: august 2013
:Signature Position: Polygon with 4 points.
:Signature Date Position:
:Tax Classification LLC:

Field Types

Standard Fields

These fields are generic and used in several products.

BaseField

Each prediction object contains a set of fields that inherit from the generic BaseField class.
A typical BaseField object will have the following attributes:

value (float|string): corresponds to the field value. Can be null if no value was extracted.
confidence (float): the confidence score of the field prediction.
boundingBox ([Point, Point, Point, Point]): contains exactly 4 relative vertices (points) coordinates of a right rectangle containing the field in the document.
polygon (Point[]): contains the relative vertices coordinates (Point) of a polygon containing the field in the image.
pageId (integer): the ID of the page, always null when at document-level.
reconstructed (bool): indicates whether an object was reconstructed (not extracted as the API gave it).

Note: A Point simply refers to a list of two numbers ([float, float]).

Aside from the previous attributes, all basic fields have access to a custom __toString method that can be used to print their value as a string.

PositionField

The position field PositionField does not implement all the basic BaseField attributes, only boundingBox, polygon and pageId. On top of these, it has access to:

rectangle ([Point, Point, Point, Point]): a Polygon with four points that may be oriented (even beyond canvas).
quadrangle ([Point, Point, Point, Point]): a free polygon made up of four points.

StringField

The text field StringField implements the following:

value (string): represents the value of the field as a string.
rawValue (string): the value of the string as it appears on the document.

Page-Level Fields

Some fields are constrained to the page level, and so will not be retrievable at document level.

Attributes

The following fields are extracted for W9 V1:

Address

📄address : The street address (number, street, and apt. or suite no.) of the applicant.

foreach($result->document->inference->prediction->address as $addressElem)
{
    echo $addressElem->value;
}

Business Name

📄businessName : The business name or disregarded entity name, if different from Name.

foreach($result->document->inference->prediction->businessName as $businessNameElem)
{
    echo $businessNameElem->value;
}

City State Zip

📄cityStateZip : The city, state, and ZIP code of the applicant.

foreach($result->document->inference->prediction->cityStateZip as $cityStateZipElem)
{
    echo $cityStateZipElem->value;
}

EIN

📄ein : The employer identification number.

foreach($result->document->inference->prediction->ein as $einElem)
{
    echo $einElem->value;
}

Name

📄name : Name as shown on the applicant's income tax return.

foreach($result->document->inference->prediction->name as $nameElem)
{
    echo $nameElem->value;
}

Signature Date Position

📄signatureDatePosition : Position of the signature date on the document.

foreach($result->document->inference->prediction->signatureDatePosition as $signatureDatePositionElem)
{
    echo $signatureDatePositionElem->polygon->getCoordinates();
}

Signature Position

📄signaturePosition : Position of the signature on the document.

foreach($result->document->inference->prediction->signaturePosition as $signaturePositionElem)
{
    echo $signaturePositionElem->polygon->getCoordinates();
}

SSN

📄ssn : The applicant's social security number.

foreach($result->document->inference->prediction->ssn as $ssnElem)
{
    echo $ssnElem->value;
}

Tax Classification

📄taxClassification : The federal tax classification, which can vary depending on the revision date.

foreach($result->document->inference->prediction->taxClassification as $taxClassificationElem)
{
    echo $taxClassificationElem->value;
}

Tax Classification LLC

📄taxClassificationLlc : Depending on revision year, among S, C, P or D for Limited Liability Company Classification.

foreach($result->document->inference->prediction->taxClassificationLlc as $taxClassificationLlcElem)
{
    echo $taxClassificationLlcElem->value;
}

Tax Classification Other Details

📄taxClassificationOtherDetails : Tax Classification Other Details.

foreach($result->document->inference->prediction->taxClassificationOtherDetails as $taxClassificationOtherDetailsElem)
{
    echo $taxClassificationOtherDetailsElem->value;
}

W9 Revision Date

📄w9RevisionDate : The Revision month and year of the W9 form.

foreach($result->document->inference->prediction->w9RevisionDate as $w9RevisionDateElem)
{
    echo $w9RevisionDateElem->value;
}

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