Certainly! Extracting data from an image without using external tools or libraries directly in PHP can be complex, especially for sophisticated tasks like OCR (optical character recognition). However, here's a basic example to demonstrate how you might approach extracting image data using PHP's built-in functions: HTML form for image upload: ```html

``` PHP to process the uploaded image: ```php '; echo '

Base64 Encoded Image Data:
'; echo $base64; } else { echo "File is not an image."; $uploadOk = 0; } } ?> ``` This example demonstrates the following: 1. HTML form for image upload is similar to the previous example. 2. PHP code checks if the uploaded file is an image and then moves it to a directory. 3. The image data is read using `file_get_contents()` and converted to a base64-encoded string using `base64_encode()`. 4. Finally, the PHP code displays the uploaded image on the page and shows the base64 encoded image data. Keep in mind that without using specialized tools or libraries, performing specific data extraction like text recognition from images will be significantly more challenging and may not be accurate or practical in most scenarios. External libraries or tools usually provide better accuracy and functionality for tasks like OCR.