<?php
$data = [
"a" => [
"b" => 1,
"c" => 2,
"d" => [
"e" => 3,
"f" => 4
]
]
];
$temp1 = change($data, "a.b");
$temp2 = change($data, "a.d.f");
?>
change100
change($data, "a.d.f")
$data["a"]["d"]["f"] = $data["a"]["d"]["f"] + 100;
1.
2.change2"a.b.c.d.e.f.g.h.i.j.k"change
3.
4.