php - Do I need a foreach with MultipleIterator? -

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this code comment , write file , work fine.

$comment1 = $xpath->query('//*[comment() = "abc"]'); $comment2 = $xpath->query('//*[comment() = "cde"]');  $commentiterator = new multipleiterator(); $commentiterator->attachiterator(new iteratoriterator($comment1)); $commentiterator->attachiterator(new iteratoriterator($comment2));  foreach ($commentiterator $comments) {     file_put_contents('page1.php', $dom->savehtml($comments[0]));     file_put_contents('page2.php', $dom->savehtml($comments[1]));    }

the problem result correct if have file_put_contents outside foreach. $comments local variable inside loop. need foreach?

this code works $comments outside foreach

$comment1 = $xpath->query('//*[comment() = "abc"]'); $comment2 = $xpath->query('//*[comment() = "cde"]');  $commentiterator = new multipleiterator(); $commentiterator->attachiterator(new iteratoriterator($comment1)); $commentiterator->attachiterator(new iteratoriterator($comment2));  foreach ($commentiterator $comments) {  }  file_put_contents('page1.php', $dom->savehtml($comments[0])); file_put_contents('page2.php', $dom->savehtml($comments[1]));

what if, in case remove foreach? in current example, iterate on if has found atleast 1 child, $comments hold last value got filled last iteration foreach did. if remove foreach completely, $comments won't available anymore.


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