Generator
PHP Manual

Generator::throw

(PHP 5 >= 5.5.0, PHP 7)

Generator::throwThrow an exception into the generator

Açıklama

public mixed Generator::throw ( Throwable $exception )

Throws an exception into the generator and resumes execution of the generator. The behavior will be the same as if the current yield expression was replaced with a throw $exception statement.

If the generator is already closed when this method is invoked, the exception will be thrown in the caller's context instead.

Değiştirgeler

exception

Exception to throw into the generator.

Dönen Değerler

Returns the yielded value.

Sürüm Bilgisi

Sürüm: Açıklama
7.0.0 The exception parameter also accepts Throwable now.

Örnekler

Örnek 1 Throwing an exception into a generator

<?php
function gen() {
    echo 
"Foo\n";
    try {
        
yield;
    } catch (
Exception $e) {
        echo 
"Exception: {$e->getMessage()}\n";
    }
    echo 
"Bar\n";
}
 
$gen gen();
$gen->rewind();
$gen->throw(new Exception('Test'));
?>

Yukarıdaki örneğin çıktısı:

Foo
Exception: Test
Bar


Generator
PHP Manual