相关疑难解决方法(0)

好吧,假设我有5个数组,都是索引数组,我想把它们组合起来,这是我能想到的最好的方法,有没有更好的方法来处理这个？

function mymap_arrays(){
    $args=func_get_args();
    $key=array_shift($args);
    return array_combine($key,$args);
}
$keys=array('u1','u2','u3');
$names=array('Bob','Fred','Joe');
$emails=array('bob@mail.com','fred@mail.com','joe@mail.com');
$ids=array(1,2,3);
$u_keys=array_fill(0,count($names),array('name','email','id'));
$users=array_combine($keys,array_map('mymap_arrays',$u_keys,$names,$emails,$ids));

这会返回:

Array
(
    [u1] => Array
        (
            [name] => Bob
            [email] => bob@mail.com
            [id] => 1
        )

    [u2] => Array
        (
            [name] => Fred
            [email] => fred@mail.com
            [id] => 2
        )

    [u3] => Array
        (
            [name] => Joe
            [email] => joe@mail.com
            [id] => 3
        )

)

编辑:经过大量的基准测试后,我使用了一个版本的Glass Robots回答来处理可变数量的数组,它显然比他明显慢,但比我原来的更快:

function test_my_new(){
    $args=func_get_args();
    $keys=array_shift($args);
    $vkeys=array_shift($args);
    $results=array();
    foreach($args as $key=>$array){
        $vkey=array_shift($vkeys);
        foreach($array as $akey=>$val){
            $result[$keys[$akey]][$vkey]=$val;
        }
    }
    return $result; …

这是我的代码:

$arr = [
    0 => [1, 2, 3, 4],
    1 => ['one', 'two', 'three', 'four'] 
    ];

$res = [];    
foreach ($arr as $item){
    foreach($item as $i){
        $res = [$i, $item];
    }
}

print_r($res);

/*
Array
(
    [0] => four
    [1] => Array
        (
            [0] => one
            [1] => two
            [2] => three
            [3] => four
        )

)

如你所见,结果没有任何意义.这是预期的结果:

Array
(
    [0] => Array
        (
            [0] => 1
            [1] => one
        )
    [1] => Array
        (
            [0] …