PHP code example of m3m0r7 / php-deferrable

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

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

    

m3m0r7 / php-deferrable example snippets

try {
    // ... do something
} finally {
    // post-processing
}

use function PHPDeferrable\defer;
use function PHPDeferrable\deferrable;

class MyClass
{
    public function doSomething1()
    {
        defer(function () {
            echo "Three!\n";
        });

        defer(function () {
            echo "Two!\n";
        });
        echo "One!\n";
    }

    public function doSomething2()
    {
        defer(function () {
            echo "NyanNyan!\n";
        });
        echo "Wanwan!\n";
    }
}

/**
 * @var MyClass $myClass
 */
$myClass = deferrable(MyClass::class, ...$somethingArguments);
$myClass->doSomething1();
$myClass->doSomething2();

use function PHPDeferrable\defer;
use function PHPDeferrable\deferrable;

deferrable(function () {
    defer(function () {
        echo "0: deferred call\n";
    });
    echo "0: first call\n";
})();

deferrable(function () {
    defer(function () {
        echo "1: deferred call\n";
    });
    echo "1: first call\n";
})();

use function PHPDeferrable\defer;
use function PHPDeferrable\deferrable;

$result = deferrable(function () {
    defer(function () {
        // do something.
    });
    return "Return value\n";
})();

echo $result;

use function PHPDeferrable\defer;
use function PHPDeferrable\deferrable;

deferrable(function () {
    $handle = fopen('php://memory', 'r')
    defer(function () use ($handle) {
        fclose($handle)
    });
    // ... do something
})();

use function PHPDeferrable\defer;
use function PHPDeferrable\deferrable;

deferrable(function () {
    $message = 'Hello World';
    defer(function ($message) {
        echo $message;
    }, $message);
    // ... do something
})();

use function PHPDeferrable\defer;
use function PHPDeferrable\deferrable;

deferrable(function () {
    $message = 'Hello World';
    defer(function (&$message) {
        echo $message;
    }, $message);

    defer(function (&$message) {
        $message = 'The cat has big power.';
    }, $message);
    // ... do something
})();

deferrable(function() {
    defer(function () {
        throw new Exception('exception 1');
    });

    defer(function () {
        throw new Exception('exception 2');
    });

    defer(function () {
        throw new Exception('exception 3');
    });
})()

deferrable(
    DeferBailableScope::of(function() {
        defer(function () {
            throw new ThirdException('exception 1');
        });
    
        defer(function () {
            throw new SecondException('exception 2');
        });
    
        defer(function () {
            throw new FirstException('exception 3');
        });
    )
})()

class MyClassTest 
{
    public function doSomething()
    {
        defer(function () {
            throw new ThirdException('exception 1');
        });
    
        defer(function () {
            throw new SecondException('exception 2');
        });
    
        defer(function () {
            throw new FirstException('exception 3');
        });
    }
}

$myClass = deferrable(
    DeferBailableScope::of(
        MyClassTest::class
    )
);

$myClass->doSomething();

class SecondException extends \Exception implements DeferBailableExceptionInterface
{
} 

deferrable(function() {
    defer(function () {
        throw new ThirdException('exception 1');
    });

    defer(function () {
        throw new SecondException('exception 2');
    });

    defer(function () {
        throw new FirstException('exception 3');
    });
})()

class Example 
{
    public function doSomething()
    {
        $context = Defer::createContext(DeferrableScopeType::BAILABLE);
    
        $context->defer(function () {
            throw new ThirdException('exception 1');
        });
    
        $context->defer(function () {
            throw new SecondException('exception 2');
        });
    
        $context->defer(function () {
            throw new FirstException('exception 3');
        });
    }
}

(new Example())->doSomething();

class MyClass
{
    public function doSomething()
    {
        $context = Defer::createContext();
        $context->defer(function () {
            echo "Two!";
        });
        echo "One!";
    }
}

$myClass = new MyClass();
$myClass->doSomething();

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