dlang语言实现php的array_flip函数最好支持关联数组功能描述如下：array_fliparray $array arrayarray_flip returns an array in flip order ie keys from array become values and values from array become keysNote that the values of

以下是dlang语言实现php的array_flip函数的代码：

import std.stdio;

/**

• Flips the keys and values of an associative array.

• @param arr The array to flip.

• @return The flipped array. */ auto array_flip(T, U)(in T[U] arr) { auto flipped = std.container.associativeArray!(U, T)();

  foreach(key, value; arr) { if(value in flipped) { // If the value already exists in the flipped array, // overwrite the previous key with the new key. flipped[value] = key; } else { flipped[value] = key; } }

  return flipped; }

void main() { string[] input = ["oranges", "apples", "pears"]; auto flipped = array_flip(input);

writeln(flipped);