PHP code example of fast-forward / defer

1. Go to this page and download the library: Download fast-forward/defer 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/ */

fast-forward / defer example snippets


use FastForward\Defer\Defer;

function example(): void
{
    $defer = new Defer();

    $defer(function () {
        echo "First defer\n";
    });

    $defer(function () {
        echo "Second defer\n";
    });

    echo "Inside function\n";
}

example();


function example(): void
{
    $defer = new Defer();

    $defer(function ($file) {
        echo "Deleting {$file}\n";
    }, 'temp.txt');

    echo "Working...\n";
}

example();


$defer(fn() => unlink($file));
$defer(fn() => fclose($handle));


fclose($handle)
unlink($file)


function process(): void
{
    $defer = new Defer();

    $defer(fn() => print "Cleanup\n");

    throw new Exception('Failure');
}

try {
    process();
} catch (Exception) {
    echo "Exception caught\n";
}


function outer(): void
{
    $defer = new Defer();

    $defer(fn() => print "Outer cleanup\n");

    inner();
}

function inner(): void
{
    $defer = new Defer();

    $defer(fn() => print "Inner cleanup\n");
}

outer();


use function FastForward\Defer\scope;

scope(function ($defer) {
    $defer(fn() => print "Cleanup\n");

    echo "Inside\n";
});


use FastForward\Defer\ErrorReporter\PsrLoggerErrorReporter;

Defer::setErrorReporter(
    new PsrLoggerErrorReporter($logger)
);


use FastForward\Defer\DeferInterface;

$defer = $request->getAttribute(DeferInterface::class);
$defer(fn() => cleanup());