Generator::throw
(PHP 5 >= 5.5.0, PHP 7, PHP 8)
Generator::throw — Throw an exception into the generator
Beschreibung
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.
Parameter-Liste
-
exception -
Exception to throw into the generator.
Rückgabewerte
Returns the yielded value.
Beispiele
Beispiel #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'));
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
Foo Exception: Test Bar
Hier Kannst Du einen Kommentar verfassen
Es sind noch keine Kommentare vorhanden.
