PHP - 查询字符串的多维数组 [英] PHP - multidimensional array to query string

问题描述

搜索了很长时间，但没有得到任何可行的答案.

Searched for so long but didn't get any feasible answer.

A) 输入:

$array = array(
            'order_source' => array('google','facebook'), 
            'order_medium' => 'google-text'
          );

看起来像:

Array
(
    [order_source] => Array
        (
            [0] => google
            [1] => facebook
        )

    [order_medium] => google-text
)

B) 所需的输出:

order_source=google&order_source=facebook&order_medium=google-text

order_source=google&order_source=facebook&order_medium=google-text

C)我尝试过的(http://3v4l.org/b3OYo):

C) What I've tried (http://3v4l.org/b3OYo):

$arr = array('order_source' => array('google','facebook'), 'order_medium' => 'google-text');

function bqs($array, $qs='')
{
    foreach($array as $par => $val)
    {
        if(is_array($val))
        {
            bqs($val, $qs);       
        }
        else
        {
           $qs .= $par.'='.$val.'&';
        }
    }
    return $qs;
}

echo $qss = bqs($arr);

D) 我得到了什么:

order_medium=google-text&

order_medium=google-text&

注意:它也应该适用于任何一维数组，如 http_build_query() 作品.

Note: It should also work for any single dimensional array like http_build_query() works.

推荐答案

我希望这就是您正在寻找的，它适用于单维到 n 维数组.

I hope that this is what you are looking for, it works with single to n-dimensinal arrays.

$walk = function( $item, $key, $parent_key = '' ) use ( &$output, &$walk ) {

    is_array( $item ) 
        ? array_walk( $item, $walk, $key ) 
        : $output[] = http_build_query( array( $parent_key ?: $key => $item ) );

};

array_walk( $array, $walk );

echo implode( '&', $output );  // order_source=google&order_source=facebook&order_medium=google-text 

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