php多维数组检索

发布时间:2020-09-11编辑:脚本学堂
如何对php多维数组进行搜索呢?php如何搜索多维数组的键值?php搜索多维数组的键名的例子。有需要的朋友做个参考。

1,php搜索多维数组的键值
例子:
 

复制代码 代码示例:
$foo[1]['a']['xx'] = 'bar 1';
$foo[1]['b']['xx'] = 'bar 2';
$foo[2]['a']['bb'] = 'bar 3';
$foo[2]['a']['yy'] = 'bar 4';
$foo[3]['c']['dd'] = 'bar 3';
$foo[3]['f']['gg'] = 'bar 3';
$foo['info'][1] = 'bar 5';

如果要查找 bar 3 怎么进行查找呢。有三个结果,而这三个结果都要,看下面的函数:
 

复制代码 代码示例:
function array_search_re($needle, $haystack, $a=0, $nodes_temp=array()){
global $nodes_found;
$a++;
foreach ($haystack as $key1=>$value1) {
    $nodes_temp[$a] = $key1;
    if (is_array($value1)){  
      array_search_re($needle, $value1, $a, $nodes_temp);
    }
    else if ($value1 === $needle){
      $nodes_found[] = $nodes_temp;
    }
}
return $nodes_found;
}
 

这个函数就可以把上面要查找到的内容全部返回出键名来
 

复制代码 代码示例:
$result = array_search_re('bar 3', $foo);
print_r($result);


输出结果:
Array ( [0] => Array ( [1] => 2 [2] => a [3] => bb )
          [1] => Array ( [1] => 3 [2] => c [3] => dd )
          [2] => Array ( [1] => 3 [2] => f [3] => gg )
        )

2,php搜索多维数组的键名
 

复制代码 代码示例:

function array_search_key($needle, $haystack){
global $nodes_found;
foreach ($haystack as $key1=>$value1) {
  if ($key1=== $needle){
   $nodes_found[] = $value1; 
   }
    if (is_array($value1)){  
      array_search_key($needle, $value1);
    }
}

return $nodes_found;
}
$result = array_search_key('a', $foo);

print_r($result);

输出结果:
Array
(
    [0] => Array
        (
            [xx] => bar 1
        )

    [1] => Array
        (
            [bb] => bar 3
        )

    [2] => Array
        (
            [yy] => bar 4
        )
)