如何编写函数的工具 [英] How to write a implement of function

问题描述

 <？php  
  class  FileOwners 
 {
公共静态函数groupByOwners（$ files）
 {
  return  NULL; 
} 
} 
 
  $ files  = array 
（
   Input.txt =>   Randy，
   Code.py =>   Stan，
    Output.txt =>  兰迪 
）; 
 var_dump（FileOwners :: groupByOwners（$ files））; 

实施 groupByOwners 函数：

1.接受一个包含每个文件名的文件所有者名称的关联数组。

2.返回包含数组的关联数组每个所有者名称的文件名，按任何顺序排列。



我尝试过：

Quote：

例如我认为，对于关联数组[Input.txt=> Randy，Code.py=> Stan，Output.txt=> Randy] groupByOwners函数应该返回[Randy=> [Input.txt，Output.txt]，Stan=> [Code.py]]。

解决方案

文件）
{
return NULL;
}
}

files = array
（
Input.txt => Randy，
Code.py => Stan，
< span class =code-string> Output.txt => Randy
）;
var_dump（FileOwners :: groupByOwners（

files））;

< b>实现一个 groupByOwners 函数：

1.接受一个包含每个文件名的文件所有者名称的关联数组。

2.以任何顺序返回一个包含每个所有者名称的文件名数组的关联数组。



我尝试过：

Quote：

例如我认为，对于关联数组[输入.txt=> Randy，Code.py=> Stan，Output.txt=> Randy] groupByOwners函数应该返回[Randy=> [Input.txt，Output.txt]，Stan=> [ Code.py]]。

<?php
class FileOwners
{
    public static function groupByOwners($files)
    {
        return NULL;
    }
}

$files = array
(
    "Input.txt" => "Randy",
    "Code.py" => "Stan",
    "Output.txt" => "Randy"
);
var_dump(FileOwners::groupByOwners($files));

Implement a groupByOwners function that:
1.Accepts an associative array containing the file owner name for each file name.
2.Returns an associative array containing an array of file names for each owner name, in any order.

What I have tried:

Quote:

For example that I thought, for associative array ["Input.txt" => "Randy", "Code.py" => "Stan", "Output.txt" => "Randy"] the groupByOwners function should return ["Randy" => ["Input.txt", "Output.txt"], "Stan" => ["Code.py"]].

解决方案

files) { return NULL; } }

files = array ( "Input.txt" => "Randy", "Code.py" => "Stan", "Output.txt" => "Randy" ); var_dump(FileOwners::groupByOwners(

files));

Implement a groupByOwners function that:
1.Accepts an associative array containing the file owner name for each file name.
2.Returns an associative array containing an array of file names for each owner name, in any order.

What I have tried:

Quote:

For example that I thought, for associative array ["Input.txt" => "Randy", "Code.py" => "Stan", "Output.txt" => "Randy"] the groupByOwners function should return ["Randy" => ["Input.txt", "Output.txt"], "Stan" => ["Code.py"]].

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