Array
(
[0] => 46-sen1-Grid1-138
[1] => 47-sen2-Grid1-138
[2] => 50-sen5-Grid2-144
[3] => 51-sen6-Grid2-144
)
如何将上面的数组制作成如下所示?
Array
(
[138] => Array
(
[0] => 46-sen1
[1] => 47-sen2
)
[144] => Array
(
[0] => 50-sen5
[1] => 51-sen6
)
)
$from = array(
'46-sen1-Grid1-138'
'47-sen2-Grid1-138',
'50-sen5-Grid2-144',
'51-sen6-Grid2-144'
);
$to = array();
foreach($from as $value) {
$elements = explode('-',$value);
if (!isset($to[$elements[3]])) $to[$elements[3]] = array();
$to[$elements[3]][] = $elements[0].'-'.$elements[1];
}
循环遍历它,解析它并生成一个新的。
这是一个如何完成此操作的简单示例:
$arr = array("46-sen1-Grid1-138",
"47-sen2-Grid1-138",
"50-sen5-Grid2-144",
"51-sen6-Grid2-144");
foreach ($arr as $item) {
$arr_n[substr($item,-3)][] = substr($item,0,7);
}
var_dump($arr_n);
您可以使用以下代码,请对我刚刚编写的基本结构的数组键和值进行检查
$a[0] =' 46-sen1-Grid1-138';
$a[1] = '47-sen2-Grid1-138';
$a[2] = '50-sen5-Grid2-144';
$a[3] = '51-sen6-Grid2-144';
$KeyArray=array();
foreach($a as $row)
{
$check=explode('-',$row);
print_r($check);
$KeyArray[$check[3]][] = $check[0].'-'.$check[1];
}
print_r($KeyArray);
将每个值拆分为
-Grid#-
子字符串,使用后缀作为分组键,并将前缀作为新元素推送到组的子数组中。 演示
$result = [];
foreach ($array as $v) {
[1 => $k, 0 => $result[$k][]] = preg_split('/-Grid\d+-/', $v);
}
var_export($result);
输出:
array (
138 =>
array (
0 => '46-sen1',
1 => '47-sen2',
),
144 =>
array (
0 => '50-sen5',
1 => '51-sen6',
),
)