A Mini PHP Example: Attention as Weights
A toy weighted sum of context words
We are not implementing a real transformer in PHP – that would be too heavy for a mini example. But the idea of attention can be shown as a weighted sum: neighboring words receive different weights, and the final vector is assembled from their values.
Example of code:
<?php
$context = [
'API' => 0.6,
'authentication' => 0.9,
'for' => 0.1,
];
$values = [
'API' => [1.0, 0.2],
'authentication' => [0.9, 0.8],
'for' => [0.1, 0.0],
];
$result = [0.0, 0.0];