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HomeBackend DevelopmentPHP Tutorial PHP数组比较 求解解决思路

PHP数组比较 求解
这是第一个数组
[code=PHP]
array
    0   =>  
        array
            0   =>   string   '1000061 '   (length=7)
            1   =>   string   '1000031 '   (length=7)
            2   =>   string   '1000056 '   (length=7)
    1   =>  
        array
            0   =>   string   '1000056 '   (length=7)
            1   =>   string   '1000049 '   (length=7)
    3   =>  
        array
            0   =>   string   '1000056 '   (length=7)
            1   =>   string   '1000048 '   (length=7)
[/code]
这是第二个数组
[code=PHP]
array
    0   =>   string   '1000047 '   (length=7)
    1   =>   string   '1000056 '   (length=7)
    2   =>   string   '1000061 '   (length=7)
[/code]

第一个数组   和第二个数组   比较   去除不相同的数组元素   还要保留第一个数组的结构

想要的效果是这样的
[code=PHP]
array
    0   =>  
        array
            0   =>   string   '1000061 '   (length=7)
            1   =>   string   '1000056 '   (length=7)
    1   =>  
        array
            0   =>   string   '1000056 '   (length=7)
    3   =>  
        array
            0   =>   string   '1000056 '   (length=7)

[/code]

哪位大侠帮我看下  


------解决方案--------------------
整理数据的时间比写代码的时间要长得多!

PHP code
$a = array(
  0 => array(
    0 => '1000061', 
    1 => '1000031', 
    2 => '1000056', 
    ),
  1 => array(
    0 => '1000056', 
    1 => '1000049', 
    ),
  3 => array(
    0 => '1000056', 
    1 => '1000048',
    ),
);
 
$b = array( 
  0 => '1000047', 
  1 => '1000056',
  2 => '1000061', 
);

foreach($a as &$v) $v = array_intersect($v, $b);

print_r($a); <div class="clear">
                 
              
              
        
            </div>
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