Question

我希望从数组中获得差值，并且还希望比较该差异值来自哪个数组。

First Array =＆gt;变量：$ first_array

Array {607,608,609}

Second Array =＆gt;变量：$ second_array

Array {607,608,609,610}

希望获得像差值的输出：610 ......来自数组： - $ second_array

我怎么能得到？请帮帮我....

Answer 1

它会起作用

<?php
$a=Array(607,608,609,610);
$b=Array (607,608,609);
$result=array_diff($a,$b);
print_r($result);
?>

或者试试这个

<?php
 $array2 = array(607,608,609); 
 $array1 = array(607,608,609,275); 

foreach ($array1 as $value)
{ 
  if(in_array($value, $array2)) 
     { 
       $key = array_search($value, $array2); 
       $key1 = array_search($value, $array1); 
       unset($array2[$key]); 
       unset($array1[$key1]); 
      //echo "yes<br>"; 
      } 
  } 
     $merge = array_merge($array1,$array2); 
    print_r($merge);
 ?>

Answer 2

尝试合并它们然后使用array_diff，array_diff_assoc和array_unique。
https://3v4l.org/Z1vpe

$first = Array(607,608,609,610);
$second = Array(800,607,608,609);
$Fcount = count($first);
$arr = array_merge($first, $second);


$arrc= array_diff($arr, array_diff_assoc($arr, array_unique($arr)));
foreach ($arrc as $key => $value){
    if($key < $Fcount){
        echo "first array ". $value . "\n";
    }else{
        echo "second array " . $value . "\n";
    }
}

编辑添加如何查找值所在的数组。https://3v4l.org/W7rch

Answer 3

使用array_diff

<?php
$a=Array(607,608,609,610);
$b=Array (607,608,609);
$res=array_diff($a,$b);
print_r($res); // output 610
?>

Answer 4

试试这个：

$first_array=array(607,608,609);
$second_array=array(607,608,609,610);

$result=calculate_diff($second_array,$first_array);
print_r($result);

function calculate_diff($array1,$array2)
{
    $diff = [];
    $larger_array = $array2;
    $smaller_array = $array1;

    if(count($array1) > count($array2))
    {
        $larger_array = $array1;
        $smaller_array = $array2;
    }

    foreach($larger_array as $ele)
    {
        if(!in_array($ele,$smaller_array))
        {
            $diff[] = $ele;
        }
    }

    return $diff;
}

Answer 5

您可以使用array_diff（）

$result=array_diff($first_array,$second_array);
print_r($result);

Answer 6

试试这个：

$a = array(607,608,609,610);
$b = array(607,608,609);
$c = array_diff($a,$b);
print_r($c);

Answer 7

试试这个：

$a1=array(607,608,609,610);
$a2=array(607,608,609);

$result=array_diff($a1,$a2);
print_r($result);

Output :-  Array ( [3] => 610 )

Answer 8

$ a1 = array（“ a” =>“红色”，“ b” =>“绿色”，“ c” =>“蓝色”，“ d” =>“黄色”）; $ a2 = array（“ e” =>“ red”，“ f” =>“ green”，“ g” =>“ blue”，“ r” =>“ black”）;

$ d = array_merge（$ a1，$ a2）;

output：array（“ a” =>“ red”，“ b” =>“ green”，“ c” =>“ blue”，“ d” =>“黄色”，“ e” =>“红色“，” f“ =>”绿色“，” g“ =>”蓝色“，” r“ =>”黑色“）

$ result = array_diff（$ d，array_intersect（$ a2，$ a1））;

print_r（$ result）; output：array（“ d” =>“黄色”，“ r” =>“黑色”）;

在php中找到两个数组的差值

8 个答案: