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Generator::throw
(PHP 5 >= 5.5.0, PHP 7)
Generator::throw — Throw an exception into the generator
Description
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.
Examples
Example #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'));
?>
The above example will output:
Foo Exception: Test Bar
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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