如何将两个 foreach 循环合二为一 [英] How do you combine two foreach loops into one

问题描述

语言是 PHP.我有一个 foreach($a 作为 $b)和另一个 foreach($c 作为 $d => $e).我如何将它们结合起来阅读.我厌倦了 foreach (($a as $b) && ($c as $d => $e))，但那是垃圾.

The language is PHP. I have one foreach ( $a as $b) and another foreach ($c as $d => $e). How do i combine them to read as one. I tired foreach (($a as $b) && ($c as $d => $e)), but that is rubbish.

推荐答案

您可能对 SPL 的 MultipleIterator

例如

// ArrayIterator is just an example, could be any Iterator.
$a1 = new ArrayIterator(array(1, 2, 3, 4, 5, 6));
$a2 = new ArrayIterator(array(11, 12, 13, 14, 15, 16));

$it = new MultipleIterator;
$it->attachIterator($a1);
$it->attachIterator($a2);

foreach($it as $e) {
  echo $e[0], ' | ', $e[1], "
";
}

印刷品

1 | 11
2 | 12
3 | 13
4 | 14
5 | 15
6 | 16

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