PHP比較二維數組

Question

我想知道如何比較兩個二維數組的值。

第一陣列

Array 1 
(
    [0] => Array 
     (
      [0] => a 
     ) 

    [1] => Array 
     (
      [0] => b 
     ) 

    [2] => Array 
     (
      [0] => c 
     ) 

} 

第二個

Array 2 
(
    [0] => Array 
     (
      [0] => a 
     ) 

    [1] => Array 
     (
      [0] => d 
     ) 

    [2] => Array 
     (
      [0] => e 
     ) 

} 

我需要讓我的循環比較陣列和檢查匹配的值。在我的例子中，array1 [0] [0] = a匹配array2 [0] [0] = a。如果匹配，php會輸出一些html。

我foreach循環

foreach ($array1 as $arrays){ 
    foreach($arrays as $array){ 
     //need to compare array2 here not sure how to do it. 
    } 
} 

Answer 1

foreach($array1 as $k1 => $arrays) { 
    foreach($arrays as $k2 => $val) { 

     if($array2[$k1][$k2] == $val) { 
      // $array1[$k1][$k2] is equal to $array2[$k1][$k2] 
     } 
    } 
} // end of foreach 

的foreach($a as $k => $v)語法做同樣的事情爲foreach($a as $v)，但它也使與該值關聯到$k的關鍵。

Answer 2

您可以使用array_diff_assoclike所以

if(count(array_diff_assoc($array1,array2) != 0)) 
{ 
    //Arrays are not the same 
}else{ 
    echo 'these following items are differing in throughout the arrays . ' . print_r(array_diff_assoc($array1,array2),true); 
} 

希望這有助於你。

另請注意array_diff_assoc，它返回的數組項與其他數組（包括其索引鍵）發現不同。