交错多个阵列成一个阵列 [英] Interleaving multiple arrays into a single array
问题描述
我需要几个阵列合并成一个单一的阵列。最好的办法来形容我正在寻找的是交错的数组到一个单一的阵列。
I need to merge several arrays into a single array. The best way to describe what I'm looking for is "interleaving" the arrays into a single array.
例如从阵列#1采取项目之一,并追加到最后一个数组。从阵列#2获取项目之一,并追加到最后一个数组。从阵列#1项获得两个附加...等。
For example take item one from array #1 and append to the final array. Get item one from array #2 and append to the final array. Get item two from array #1 and append...etc.
最后一个数组将是这个样子:
The final array would look something like this:
阵列#1.element#1
阵列#2.element#1
。
。
array#1.element#1 array#2.element#1 . . .
在踢球者是个人数组可以是各种长度。
The "kicker" is that the individual arrays can be of various lengths.
有没有使用更好的数据结构?
Is there a better data structure to use?
推荐答案
例如,
function array_zip_merge() {
$output = array();
// The loop incrementer takes each array out of the loop as it gets emptied by array_shift().
for ($args = func_get_args(); count($args); $args = array_filter($args)) {
// &$arg allows array_shift() to change the original.
foreach ($args as &$arg) {
$output[] = array_shift($arg);
}
}
return $output;
}
// test
$a = range(1, 10);
$b = range('a', 'f');
$c = range('A', 'B');
echo implode('', array_zip_merge($a, $b, $c)); // prints 1aA2bB3c4d5e6f78910
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