Question

我需要你的帮助，我有一个如下所示的数组

[["A","Orange"],["B","Orange"],["C","Orange"],["D","Orange"],["E","Apple"],["F","Mango"],["G","Banana"]]

我想找到相同的水果，结果就是

A - D: Orange, E: Apple, F: mango, G Banana

如何在多个阵列中搜索相同的水果？感谢。

Answer 1

使用水果名称作为键，将键作为结果的值。

foreach($fruits as $fruit)
{
  $o[$fruit[1]][] = $fruit[0];
}

测试代码：

<?php
$fruits = [["A","Orange"],["B","Orange"],["C","Orange"],["D","Orange"],["E","Apple"],["F","Mango"],["G","Banana"]];
foreach($fruits as $fruit)
{
  $o[$fruit[1]][] = $fruit[0];
}
var_dump($o);

输出：

ei@localhost:~$ php test.php
array(4) {
  ["Orange"]=>
  array(4) {
    [0]=>
    string(1) "A"
    [1]=>
    string(1) "B"
    [2]=>
    string(1) "C"
    [3]=>
    string(1) "D"
  }
  ["Apple"]=>
  array(1) {
    [0]=>
    string(1) "E"
  }
  ["Mango"]=>
  array(1) {
    [0]=>
    string(1) "F"
  }
  ["Banana"]=>
  array(1) {
    [0]=>
    string(1) "G"
  }
}

编辑：

<?php
$fruits = [["A","Orange"],["B","Orange"],["C","Orange"],["D","Orange"],["E","Apple"],["F","Mango"],["G","Banana"]];
$fruits2 = [["A","Orange"],["C","Orange"],["D","Orange"],["E","Apple"],["F","Mango"],["G","Banana"]];
foreach($fruits2 as $fruit)
{
  $o[$fruit[1]][] = $fruit[0];
}
$o = array_map(function($v){
  $str = '';
  $pre = '';
  $isInSequence = false;
  $item = '';
  foreach($v as $item)
  {
    if($pre != '')
    {
        if(ord($pre) == ord($item) - 1)
        {
            $isInSequence = true;
        }
        else
        {
            if($isInSequence)
                $str = $str . '-';
            else
                $str = $str . ',' . $item;
            $isInSequence = false;
        }
    }
    else
        $str = $str.$item;
    $pre = $item;
  }
  if($isInSequence)
  {
      $str = $str . '-' . $item;
  }
  return $str;
}, $o);
var_dump($o);

输出：

ei@localhost:~$ php test.php
array(4) {
  ["Orange"]=>
  string(5) "A,C-D"
  ["Apple"]=>
  string(1) "E"
  ["Mango"]=>
  string(1) "F"
  ["Banana"]=>
  string(1) "G"
}

如何在多维数组中查找相同的值

1 个答案: