OCR Space API Wrapper

A simple wrapper for OCR Space API

Installation

This wrapper requires:

• PHP ^8.2
• CURL extension enabled

You can easily install the wrapper with Composer:

  composer require lea-reift/ocr-space

Usage

The only required parameter for the Client is your apikey (this will be used in the requests). Then, you can chain the desired options in helper methods for the accepted request parameters.

require_once 'vendor/autoload.php'; // Don't forget the autoload

use LeaReift\OcrSpace\Client;

$response = (new Client('your-apikey'))
    ->fromUrl('https://dl.a9t9.com/ocr/solarcell.jpg')
    ->get();

API Reference

The Client class provides an interface to interact with the OCR.space API, enabling optical character recognition on images from different sources. Check OCR Space Documentation to dig deeper with the accepted values, but the library also counts with typed parameters methods, so use it won't be to difficult.

Constructor

public function __construct(string $apiKey, string $baseUrl = "https://api.ocr.space", string $endpoint = "/parse/image")

Creates a new instance of the OCR Space client.

Parameters:

• $apiKey - The API key for authenticating with the OCR.space service
• $baseUrl - The base URL of the API (optional, defaults to "https://api.ocr.space")
• $endpoint - The API endpoint (optional, defaults to "/parse/image")

use LeaReift\OcrSpace\Client;

$client = new Client('your-api-key-here');

Data Input Methods

fromUrl

public function fromUrl(string $url): self

Sets an image URL as input for OCR processing.

Parameters:

• $url - Valid URL of the image to be processed

$client->fromUrl('https://example.com/image.jpg');

fromFile

public function fromFile(string|CURLFile $file): self

Sets a local file as input for OCR processing.

Parameters:

• $file - File path as string or CURLFile instance

// Using string
$client->fromFile('/path/to/image.png');

// Using CURLFile
$curlFile = new CURLFile('/path/to/image.png');
$client->fromFile($curlFile);

fromBase64String

public function fromBase64String(string $base64String): self

Sets a base64 string representing an image as input for OCR processing.

Parameters:

• $base64String - Base64 string representing an image

$base64Image = base64_encode(file_get_contents('image.jpg'));
$client->fromBase64String($base64Image);

Configuration Methods

language

public function language(string|LanguageCodeEnum $language): self

Sets the language for OCR recognition.

Parameters:

• $language - Language code as string or LanguageCodeEnum instance

use LeaReift\OcrSpace\Enums\LanguageCodeEnum;

// Using enum
$client->language(LanguageCodeEnum::ENGLISH);

// Using string
$client->language('eng');

isOverlayRequired

public function isOverlayRequired(bool $isRequired): self

Determines if overlay is required on the processed image.

Parameters:

• $isRequired - Boolean indicating if overlay is required

$client->isOverlayRequired(true);

detectOrientation

public function detectOrientation(bool $detectOrientation): self

Configures whether to automatically detect the image orientation.

Parameters:

• $detectOrientation - Boolean indicating if orientation should be detected

$client->detectOrientation(true);

fileType

public function fileType(string|FileTypeEnum $fileType): self

Sets the file type of the input image.

Parameters:

• $fileType - File type as string or FileTypeEnum instance

use LeaReift\OcrSpace\Enums\FileTypeEnum;

// Using enum
$client->fileType(FileTypeEnum::PDF);

// Using string
$client->fileType('pdf');

isCreateSearchablePdf

public function isCreateSearchablePdf(bool $isCreateSearchablePdf): self

Determines if a searchable PDF should be created.

Parameters:

• $isCreateSearchablePdf - Boolean indicating if a searchable PDF should be created

$client->isCreateSearchablePdf(true);

isSearchablePdfHideTextLayer

public function isSearchablePdfHideTextLayer(bool $isSearchablePdfHideTextLayer): self

Determines if the text layer should be hidden in the searchable PDF.

Parameters:

• $isSearchablePdfHideTextLayer - Boolean indicating if the text layer should be hidden

$client->isSearchablePdfHideTextLayer(false);

scale

public function scale(bool $scale): self

Determines if the image should be scaled to improve OCR recognition.

Parameters:

• $scale - Boolean indicating if the image should be scaled

$client->scale(true);

isTable

public function isTable(bool $isTable): self

Configures if the image contains data in table format.

Parameters:

• $isTable - Boolean indicating if the image contains tables

$client->isTable(true);

engine

public function engine(int $engine = 1): self

Sets the OCR engine to use.

Parameters:

• $engine - Integer representing the OCR engine (defaults to 1)

$client->engine(2);

options

public function options(): array

Returns an array with all currently configured options.

$options = $client->options();
print_r($options);

Complete Usage Example

use LeaReift\OcrSpace\Client;
use LeaReift\OcrSpace\Enums\LanguageCodeEnum;

// Create client
$client = new Client('your-api-key-here');

// Configure options
$response = $client
    ->fromUrl('https://example.com/invoice.jpg')
    ->language(LanguageCodeEnum::ENGLISH)
    ->detectOrientation(true)
    ->isTable(true)
    ->engine(2)
    ->get();

// Process the response
if (!$response->is_errored_on_processing) {
    echo "Recognized text count: " . $response->parsed_results->count();
} else {
    echo "Error: " . $response->error_message;
}

Contributing

Contributions are always welcome! Just open a Pull Request with your changes and I'll review it as soon as I can!

Credits

OCR.space is a service of a9t9 software GmbH. They are also in github

This package is an independent development that is in no way linked to a9t9 software. I want to acknowledge a9t9 for put this OCR service online.

License

This wrapper is made available under the MIT License (MIT). Please see License File for more information.