PHP code example of michaeljwright / aws-comprehend

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

michaeljwright / aws-comprehend example snippets

// config/app.php

return [

    // ...

    'providers' => [

        // ...

        /*
         * Package Service Providers...
         */
        MichaelJWright\Comprehend\ComprehendServiceProvider::class, // [a]

        /*
         * Application Service Providers...
         */
        App\Providers\AppServiceProvider::class,
        App\Providers\AuthServiceProvider::class,
        App\Providers\EventServiceProvider::class,
        App\Providers\RouteServiceProvider::class,

    ],

    // ...

    'aliases' => [

        'App' => Illuminate\Support\Facades\App::class,
        'Artisan' => Illuminate\Support\Facades\Artisan::class,

        // ...

        'Comprehend' => 'MichaelJWright\Comprehend\ComprehendFacade', // [b]
        'Hash' => Illuminate\Support\Facades\Hash::class,

        // ...
    ],

];

$config = [
       'LanguageCode' => 'en',
       'TextList' => ['This is good', 'This is bad'],
   ];

$jobSentiment = \Comprehend::batchDetectSentiment($config);

dd($jobSentiment['ResultList']);

// FIRST create a function to call the comprehend facade and parse the results (below will return an array with the overall sentiment as well as positive/negative scores)

public function sentimentAnalysis($comments) {

    $results = array();

    if(count($comments)>0) {
        $config = [
               'LanguageCode' => 'en',
               'TextList' => $comments,
           ];

        $jobSentiment = \Comprehend::batchDetectSentiment($config);

        $positive = array();
        $negative = array();

        if(count($jobSentiment['ResultList'])) {
            foreach($jobSentiment['ResultList'] as $result){
                $positive[] = $result['SentimentScore']['Positive'];
                $negative[] = $result['SentimentScore']['Negative'];
            }
        }

        $results['positive'] = array_sum($positive)/count($positive);
        $results['negative'] = array_sum($negative)/count($negative);
        $results['sentiment'] = ($results['positive'] > $results['negative'] ? 'POSITIVE' : 'NEGATIVE');

        return $results;
    } else {
        return $results['sentiment'] = 'INVALID';
    }
}

// SECOND create an array of comments for the analysis and call the above function

$comments = [
    'I think this is very good considering I created a package/wrapper for Amazon Comprehend. Yay me!',
    'Oh my good this is such a bloody rubbish package/wrapper. I hope the author stops coding immediately.',
    'This is really good, I really love this stand by this',
    'This is sooooo bad'
];

dd($this->sentimentAnalysis($comments));