PHP code example of respect / fluent-analysis

1. Go to this page and download the library: Download respect/fluent-analysis 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/ */

respect / fluent-analysis example snippets


$stack = Middleware::cors('*')->rateLimit(100);

// PHPStan knows:
//   cors()      accepts (string $origin = '*')
//   rateLimit() accepts (int $maxRequests = 60)
//   getNodes()  returns array{Cors, RateLimit}
//   $stack      is Middleware<array{Cors, RateLimit}>

$stack->getNodes()[0]; // PHPStan infers: Cors
$stack->typo();        // PHPStan error: method not found
$stack->cors(42);      // PHPStan error: int given, string expected


$builder = new MiddlewareStack();
$chain = $builder->cors('*')->rateLimit(100)->auth('bearer');

// PHPStan knows: array{Cors, RateLimit, Auth}
$nodes = $chain->getNodes();

// Individual elements are typed
$nodes[0]; // Cors
$nodes[1]; // RateLimit
$nodes[2]; // Auth


$a = MiddlewareStack::cors('*');
$b = $a->rateLimit(100);
$b->getNodes(); // array{Cors, RateLimit}


$builder->intNode()->doAssert($x);
// PHPStan now knows $x is int


if ($builder->intNode()->isOk($x)) {
    // $x is int here
}
// $x is not int here


$builder->intNode()->numericNode()->doAssert($x);
// int ∩ (int|float|numeric-string) = int