如何检查给定键值对的多维数组，即。完全相同的键和值？答案

【问题标题】：How to check multidimensional arrays for the given key value pairs ie. exactly same keys and values?如何检查给定键值对的多维数组，即。完全相同的键和值？
【发布时间】：2019-10-03 10:45:10
【问题描述】：

当与主数组比较时，它应该返回主数组的匹配键

例如：

$a = array(
   'a' => array('key1' => 'value1', 'key2' => 'value1', 'key3' => 'value1'),
   'b' => array('key1' => 'value2', 'key2' => 'value2', 'key3' => 'value2'), 
   'c' => array('key1' => 'value3', 'key2' => 'value3', 'key3' => 'value3'),
   'd' => array('key1' => 'value2', 'key2' => 'value2', 'key3' => 'value4')
);


1: $search1 = array('key1' => 'value2', 'key2' => 'value2');

当与上面的数组 search1 比较时，它应该返回键 'b' 和 'd'

即。 ['b','d']

    2: $search2 = array('key1' => 'value3', 'key3' => 'value3');

当与上面的数组 search2 比较时，它应该返回 key 'c'

即。 ['c']

    3: $search3 = array('key1' => 'value3', 'key2' => 'value3', 'key3' => 'value3' );

当与上面的数组 search3 比较时，它应该返回 key 'c'

即。 ['c']

    4: $search4 = array('key1' => 'value2');

当与上面的数组 search4 比较时，它应该返回键 'b' 和 'd'

即。 ['b','d']

【问题讨论】：

标签： php laravel codeigniter laravel-5 logic

【解决方案1】：

试试这个，

$output =array(
'a' => array('key1' => 'value1', 'key2' => 'value1', 'key3' => 'value1'),
'b' => array('key1' => 'value2', 'key2' => 'value2', 'key3' => 'value2'), 
'c' => array('key1' => 'value3', 'key2' => 'value3', 'key3' => 'value3'),
'd' => array('key1' => 'value2', 'key2' => 'value2', 'key3' => 'value4')
);

$res = [];
$search = array('key1' => 'value2');

foreach($output as $key => $out)
{
if(isset($search['key1']) && isset($search['key2']) && !array_key_exists('key3',$search))
{
    if($search['key1'] == $out['key1'] && $search['key2'] == $out['key2'])
    {
        $res[] = $key;
    }
}
if(isset($search['key1']) && isset($search['key3']) && !array_key_exists('key2',$search))
{
    if($search['key1'] == $out['key1'] && $search['key3'] == $out['key3'])
    {
        $res[] = $key;
    }
}
if(isset($search['key2']) && isset($search['key3']) && !array_key_exists('key1',$search))
{
    if($search['key2'] == $out['key2'] && $search['key3'] == $out['key3'])
    {
        $res[] = $key;
    }
}
if(!array_key_exists('key1',$search) && !array_key_exists('key2',$search) && isset($search['key3']))
{
   if($search['key3'] == $out['key3'])
    {
        $res[] = $key;
    } 
}
if(!array_key_exists('key2',$search) && !array_key_exists('key3',$search)&& isset($search['key1']))
{
   if($search['key1'] == $out['key1'])
    {
        $res[] = $key;
    } 
}
if(!array_key_exists('key1',$search) && !array_key_exists('key3',$search)&& isset($search['key2']))
{
   if($search['key2'] == $out['key2'])
    {
        $res[] = $key;
    } 
}
if(isset($search['key1']) && isset($search['key2']) && isset($search['key3']))
{
    if($search['key1'] == $out['key1'] && $search['key2'] == $out['key2'] && $search['key3'] == $out['key3'])
    {
        $res[] = $key;
    }
}
}
print_r($res);die();

用测试条件更改$search以获得结果...

【讨论】：

【解决方案2】：

您可以使用array_intersect_assoc，例如：

function compareArrays($x, $y){
  $output = []; // Create an empty array to hold the output

  foreach($x as $key => $value): // Loop array $x as key/value
    if (count(array_intersect_assoc($y, $value)) > 0) { // Check if the intersection is greater than 0
      $output[] = $key; // If so, push the key to $output
    }
  endforeach;

  print_r($output); // Do something with the output
}

上面的函数有 2 个参数，即要比较的 2 个数组。第一个阵列是主阵列。它输出与第一个参数不匹配的项目数组。一个更完整的例子：

$a = array(
   'a' => array('key1' => 'value1', 'key2' => 'value1', 'key3' => 'value1'),
   'b' => array('key1' => 'value2', 'key2' => 'value2', 'key3' => 'value2'), 
   'c' => array('key1' => 'value3', 'key2' => 'value3', 'key3' => 'value3'),
   'd' => array('key1' => 'value2', 'key2' => 'value2', 'key3' => 'value4')
);

$search1 = array('key1' => 'value2', 'key2' => 'value2');
$search2 = array('key1' => 'value3', 'key3' => 'value3');
$search3 = array('key1' => 'value3', 'key2' => 'value3', 'key3' => 'value3' );
$search4 = array('key1' => 'value2');

function compareArrays($x, $y){
  $output = [];

  foreach($x as $key => $value):
    if (count(array_intersect_assoc($y, $value)) > 0) {
      $output[] = $key;
    }
  endforeach;

  print_r($output);
}

compareArrays($a, $search1); // b,d
compareArrays($a, $search2); // c
compareArrays($a, $search3); // c
compareArrays($a, $search4); // b,d

Working example

【讨论】：