为了得到数组元素分析串 [英] Parse string in order to get array elements

问题描述

我试图找出如何采取一个字符串，分析它，并获得相匹配的解析钥匙还给了相应的数组值。我不知道如何正确地解释这一点，所以这里是一个例子。

I'm trying to figure out how to take a string, parse it, and get the corresponding array values that match the parsed keys back. I don't know how to properly explain this, so here's an example.

$testArray = array(
    'router' => array(
        'format' => 'xml',
    ),
);

我想分析看起来像这样的字符串 - router.format ，而我显然并不期待回到 XML 为字符串。传入的​​String可以分离期间的任意金额。我想以某种方式做递归的，但我想不出任何方式在此会工作。

The string I want to parse will look like this - router.format, and I'm obviously expecting back xml as a string. The passed in string can have any arbitrary amount of separating periods. I was thinking of doing recursion somehow, but I can't think of any way in which this will work.

这是非常类似于SF2的服务容器，并在你的服务返回的路上。

This is very similar to SF2's service container and the way in which you get services back.

任何帮助将是巨大的！

推荐答案

可能需要一些错误检查：

Might need some error checking:

$testArray = array(
    'router' => array(
        'format' => 'xml',
    ),
);
$path = 'router.format';

$result = $testArray;
foreach(explode('.', $path) as $key) {
    if(isset($result[$key])) {
        $result = $result[$key];
    }
}
print_r($result);

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