我想以递归方式合并两个数组,保留关联键,但替换其他键。我尝试使用is_numeric()
进行密钥检查,但更换密钥“10”和“11”。
示例数组:
数组1:
$arr1['assoc']='foobar';
$arr1[]='test index';
$arr1[][]=array(3,4);
$arr1['10']['test10'][]=array(0,1);
$arr1['11']['test11']=45;
$arr1['multiarray'][]=array(0,1);
ARRAY2:
$arr2[]=1;
$arr2[][]=2;
$arr2['assoc']='test passed';
$arr2['10']['test10'][]=array(0,2);
$arr2['11']['test11']=array(4,5);
$arr2['multiarray'][]=array(0,2);
如何合并它们(通用功能):
array(
'assoc' => 'test passed',
0 => 'test index',
1 => array(
0 => array(
0 => 3,
1 => 4,
),
),
10 => array(
'test10' => array (
0 => array(
0 => 0,
1 => 1,
),
1 => array(
0 => 0,
1 => 2,
),
),
),
11 => array(
'test11' => array (
1 => 4,
2 => 5,
),
),
'multiarray' => array(
0 => array(
0 => 0,
1 => 1,
),
1 => array(
0 => 0,
0 => 2,
),
),
2 => 1,
3 => array(
0 => 2,
),
)
保留按键的顺序并不重要。
function array_max_index_key($arr) {
$prev = -1;
if(is_array($arr)) {
$keys = array_keys($arr);
foreach($keys as $k => $key) {
if(is_numeric($key)) {
if($key == $prev+1) {
$prev=$key;
} else break;
}
}
}
return $prev;
}
function justfortesting($a1, $a2) {
$res=$a1;
$max_key=array_max_index_key($res);
if(is_array($a1)) {
foreach ($a2 as $k => $v) {
if(is_numeric($k) && $k<=$max_key) {
$max_key++;
$res[$max_key]=$v;
} elseif (is_array($v)) {
$res[$k]=justfortesting($a1[$k], $v);
} else {
$res[$k]=$v;
}
}
} else {
$res=$a2;
}
return $res;
}
$arr3=justfortesting($arr1, $arr2);
答案 0 :(得分:0)
检查is_string()而不是is_numeric()
编辑:
当你要求
时is_numeric($key)
检查
is_numeric($key) and !is_string($key)