<?php
$arr=Array
(
"1" => Array
(
"1" => "c1",
"2" => "c1",
"3" => "c1",
"4" => "c1",
"5" => "c1",
"6" => "c1",
"7" => "c1",
"8" => "c1",
"9" => "c1",
"10" => "c1",
"11" => "c1",
"12" => "c1"
),
"10" => Array
(
"1" => "c2",
"2" => "c2",
"3" => "c2",
"4" => "c2",
"5" => "c2",
"6" => "c2",
"7" => "c2",
"8" => "c2",
"9" => "c2",
"10" => "c2",
"11" => "c2",
"12" => "c2"
)
);
echo json_encode(
array_map(
null,
array_keys(current($arr)),
...$arr
),
JSON_PRETTY_PRINT
);
- Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- [
[
1,
"c1",
"c2"
],
[
2,
"c1",
"c2"
],
[
3,
"c1",
"c2"
],
[
4,
"c1",
"c2"
],
[
5,
"c1",
"c2"
],
[
6,
"c1",
"c2"
],
[
7,
"c1",
"c2"
],
[
8,
"c1",
"c2"
],
[
9,
"c1",
"c2"
],
[
10,
"c1",
"c2"
],
[
11,
"c1",
"c2"
],
[
12,
"c1",
"c2"
]
]
preferences:
126.07 ms | 403 KiB | 117 Q