Code Utils

1. To make our code more readable and clean, we'll use following global functions, that will be placed in utils.php file.

utils.php

function downloadFile($url, $filePath) {
    $context = stream_context_create(['http' => ['timeout' => 30]]);
    $response = @file_get_contents($url, false, $context);
    if ($response === false) {
        throw new RuntimeException("Failed to download file from $url");
    }
    file_put_contents($filePath, $response);
}

2. We'll use PrettyPrint library: https://github.com/apphp/pretty-print

Pretty print function - pprint() or pp() works like Python's print().

Examples of output:

Sample 1:

pprint($demo->getWeights(), end:"\n\n");

// Output
tensor([[[-0.1962, -1.4249, -0.6252],
   [-0.2102, -0.8102,  0.2460],
   ...,
   [-1.1121, -1.0190, -0.3571],
   [ 0.0423, -0.8077, -1.1279],
   [-0.5272, -1.7160,  1.6134]])

Sample 2:

echo "Embedding for token 3:\n";
pprint($demo->embedTokenRounded(3), end:"\n\n")

// Output
Embedding for token 3:
[-1.1121, -1.0190, -0.3571]

3. We're also going to use following libraries: rubix/tensor and rubix/ml

• rubix/tensor - a library and extension that provides objects for scientific computing in PHP.

• rubix/ml - a high-level machine learning and deep learning library for the PHP language.