PHP 将一个数组附加到另​​一个数组(不是 array_push 或 +) [英] PHP append one array to another (not array_push or +)

问题描述

如何将一个数组附加到另​​一个数组而不比较它们的键?

How to append one array to another without comparing their keys?

$a = array( 'a', 'b' );
$b = array( 'c', 'd' );

最后应该是:Array( [0]=>a [1]=>b [2]=>c [3]=>d)如果我使用 [] 或 array_push 之类的东西，它将导致以下结果之一:

At the end it should be: Array( [0]=>a [1]=>b [2]=>c [3]=>d ) If I use something like [] or array_push, it will cause one of these results:

Array( [0]=>a [1]=>b [2]=>Array( [0]=>c [1]=>d ) )
//or
Array( [0]=>c [1]=>d )

它应该是一些东西，这样做，但要以更优雅的方式:

It just should be something, doing this, but in a more elegant way:

foreach ( $b AS $var )
    $a[] = $var;

推荐答案

array_merge 是一种优雅的方式:

array_merge is the elegant way:

$a = array('a', 'b');
$b = array('c', 'd');
$merge = array_merge($a, $b); 
// $merge is now equals to array('a','b','c','d');

做类似的事情:

$merge = $a + $b;
// $merge now equals array('a','b')

不会工作，因为 + 操作符实际上并没有合并它们.如果它们 $a 和 $b 有相同的键，它不会做任何事情.

Will not work, because the + operator does not actually merge them. If they $a has the same keys as $b, it won't do anything.

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