我如何使用数组引用数组里面PHP？ [英] How can I use array-references inside arrays in PHP?

问题描述

我希望能够做到以下几点：

I want to be able to do the following:

$normal_array       = array();
$array_of_arrayrefs = array( &$normal_array );

// Here I want to access the $normal_array reference **as a reference**,
// but that doesn't work obviously. How to do it?
end( $array_of_arrayrefs )["one"] = 1; // choking on this one

print $normal_array["one"]; // should output 1

问候

/ R

推荐答案

端（）不返回的最后一个值的参考，而是最后的值本身。这里是一个解决方法：

end() doesn't return a reference of the last value, but rather the last value itself. Here is a workaround:

$normal_array       = array();
$array_of_arrayrefs = array( &$normal_array );

$refArray = &end_byref( $array_of_arrayrefs );
$refArray["one"] = 1;

print $normal_array["one"]; // should output 1

function &end_byref( &$array ) {
    $lastKey = end(array_keys($array));
    end($array);
    return $array[$lastKey];
}

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