PHP yield Generator-Syntax

  • Ist yield so was wie Array-Generator?

     
  • Wo sind die Vorteile gegenüber übliche Arrays?

<?php function generiere_bis_vier() { for ($i = 1; $i <= 4; $i++) { yield $i; } }

$generator = generiere_bis_vier();
foreach ($generator as $value) {
echo "$value\n";
}
?>

Ergebnis soll so aussehen:

1

2

3

4

Wozu braucht man  yield ?

php

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