PHP code example of adagio / middleware

1. Go to this page and download the library: Download adagio/middleware library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

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

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

adagio / middleware example snippets


// I want to solarize, rotate, unblur and then sepia my image (parameters are 
// voluntarily omitted for clarity).
$image = (new SepiaFilter)
    ->filter((new UnblurFilter)
    ->filter((new RotateFilter)
    ->filter((new SolarizedFilter)
    ->filter(new Image('/path/to/image')))));


use Adagio\Middleware\Stack;

$pipe = new Stack([
    new SolarizedFilter,
    new RotateFilter,
    new UnblurFilter,
    new SepiaFilter,
]);

$image = $stack(new Image('/path/to/image'));


function (Image $image, callable $next): Image
{
    // Maybe do something with $image
    
    $resultingImage = $next($image);
    
    // Maybe do something with $resultingImage
    
    return $resultingImage;
}


function (SqlQuery $query, ResultSet $resultSet, callable $next): ResultSet


final class QueryCache
{
    // ...

    public function __invoke(SqlQuery $query, ResultSet $resultSet, callable $next): ResultSet
    {
        // If the query is already in cache, return the ResultSet and don't 
        // trigger the rest of the middleware stack
        if ($this->resultSetCache->hasQuery($query)) {
            return $this->resultSetCache->getFromQuery($query);
        }

        $finalResultSet = $next($query, $resultSet);

        $this->resultSetCache->add($query, $finalResultSet);

        return $finalResultSet;
    }
}