从组键PHP数组

问题描述

发现这个职位，帮助我了：Split一个字符串，形成多维数组的钥匙？

Found this post that helped me out: Split a string to form multidimensional array keys?

总之，工程就像一个魅力，当涉及到的字符串值，但是如果数组键包含整数，然后它忽略这些。

Anyhow that works like a charm when it comes to string values, but if array keys contain integers then it misses these.

下面是演示：

我得到了一组键的：

Array
(
    [0] => variable_data
    [1] => 0
    [2] => var_type
)

和方法来创建电子邮件嵌套数组

And method to create e nested array

function constructArray( &$array_ptr, $keys, $value )
    {
        // extract the last key
        $last_key = array_pop ( $keys );

        // walk/build the array to the specified key
        while ( $arr_key = strval( array_shift ( $keys ) ) )
        {
            if ( !array_key_exists ( strval($arr_key), $array_ptr ) )
            {
                $array_ptr[ strval($arr_key) ] = array ( );
            }
            $array_ptr = &$array_ptr[ strval($arr_key) ];
        }

        // set the final key
        $array_ptr[ $last_key ] = '$value';
    }

我用它是这样的：

And i use it in this way:

$keys = array(
    'variable_data',
    '0',
    'var_type'
);
    $clean_arr = array();
    constructArray($clean_arr, $keys, 'asd');

但输出看起来是这样的：

but the output looks like this:

Array
(
    [variable_data] => Array
        (
            [var_desc] => $value
        )

)

正如你所见，variable_data指数不包含0指数。我已经测试了，我可能知道工作的allmost一切，但它没有。任何人谁拥有更好的线索？

As you see, variable_data index is not containing 0 index. I have tested allmost everything that i might know to work but it didnt. Anyone who has better clue ?

推荐答案

下面是一条什么神奇的功能：

Solution

Here's the function that does the magic:

function constructArray( &$array_ptr, $keys, $value )
    {
        // extract the last key
        $last_key = array_pop ( $keys );

        foreach ( $keys as $arr_key )
        {
             unset($keys[$arr_key]);
             if ( !array_key_exists ( strval($arr_key), $array_ptr ) )
            {
                $array_ptr[ strval($arr_key) ] = array ( );
            }
            $array_ptr = &$array_ptr[ strval($arr_key) ];
        }

        // set the final key
        $array_ptr[ $last_key ] = $value;
    }

用法：

$keys = array('variable_data', '0', 'var_desc');
$clean_arr = array();
constructArray($clean_arr, $keys, 'asd');

// Output
Array
(
    [variable_data] => Array
        (
            [0] => Array
                (
                    [var_desc] => asd
                )

        )

)

这篇关于从组键PHP数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！