我有两个数组.我想将它们合并到相同的键AND值上.如果它们具有相同的ur_user_id,则它们将被合并. array2只为array1提供了一些额外的数据,所以new_array.length = array1.length. array1只是从array2获取附加数据.
$array1 =
array(
array('ur_user_id'=> 1,'ur_fname'=>'PerA','ur_lname'=>'SonA'),
array('ur_user_id'=> 2,'ur_fname'=>'PerB','ur_lname'=>'SonB'),
array('ur_user_id'=> 3,'ur_fname'=>'PerC','ur_lname'=>'SonC'),
);
$array2 =
array(
array('ur_user_id' => 5,'ur_code' => 'EE','ur_user_role' => 'testE'),
array('ur_user_id' => 4,'ur_code' => 'DD','ur_user_role' => 'testD'),
array('ur_user_id' => 6,'ur_code' => 'FF','ur_user_role' => 'testF'),
array('ur_user_id' => 3,'ur_code' => 'CC','ur_user_role' => 'testC'),
array('ur_user_id' => 1,'ur_code' => 'AA','ur_user_role' => 'testA'),
array('ur_user_id' => 2,'ur_code' => 'BB','ur_user_role' => 'testB'),
);
然后新数组必须如下所示.它将包含array1和array2中的值.
$new_array =
array(
array('ur_user_id'=> 1,'ur_fname'=>'PerA','ur_lname'=>'SonA','ur_code' => 'AA','ur_user_role' => 'testA'),
array('ur_user_id'=> 2,'ur_fname'=>'PerB','ur_lname'=>'SonB','ur_code' => 'BB','ur_user_role' => 'testB'),
array('ur_user_id'=> 3,'ur_fname'=>'PerC','ur_lname'=>'SonC','ur_code' => 'CC','ur_user_role' => 'testC'),
);
array1.length总是小于或等于array2.length永远不会更大.并且两个数组的顺序不会总是有序.我已经尝试了下面的函数,我在这里的某处,但它对我不起作用,我对循环不太好.
function merge_common_keys(){
$arr = func_get_args();
$num = func_num_args();
$keys = array();
$i = 0;
for ($i=0; $i<$num; ++$i){
$keys = array_merge($keys, array_keys($arr[$i]));
}
$keys = array_unique($keys);
$merged = array();
foreach ($keys as $key){
$merged[$key] = array();
for($i=0; $i<$num; ++$i){
$merged[$key][] = isset($arr[$i][$key]) ? $arr[$i][$key] : null;
}
}
return $merged;
}
基于给定的数组,结果是这样的.它只合并在同一个键上.
Array
(
[0] => Array
(
[0] => Array
(
[ur_user_id] => 1
[ur_fname] => PerA
[ur_lname] => SonA
)
[1] => Array
(
[ur_user_id] => 5
[ur_code] => AA-BB-CC
[ur_user_role] => testE
)
)
最佳答案 试试这段代码,它可能对你有帮助,它很简短,没有遍历循环:
usort($array2,function($a,$b){
return strnatcmp($a['ur_user_id'],$b['ur_user_id']);
});
$array3 = array_replace_recursive($array1, $array2);
$result = array_uintersect($array3,$array1,function($a,$b){
return strnatcmp($a['ur_user_id'],$b['ur_user_id']);
});
print_r($result);
产量
Array
(
[0] => Array
(
[ur_user_id] => 1
[ur_fname] => PerA
[ur_lname] => SonA
[ur_code] => AA
[ur_user_role] => testA
)
[1] => Array
(
[ur_user_id] => 2
[ur_fname] => PerB
[ur_lname] => SonB
[ur_code] => BB
[ur_user_role] => testB
)
[2] => Array
(
[ur_user_id] => 3
[ur_fname] => PerC
[ur_lname] => SonC
[ur_code] => CC
[ur_user_role] => testC
)
)
这是Demo