function decode(C) {
var digi=16;
var add= 10;
var plus=7;
var cha=36;
var I = -1;
var H = 0;
var B = "";
var J = C.length;
var G = C.charCodeAt(J - 1);
C = C.substring(0, J - 1);
J--;
for (var E = 0; E < J; E++) {
var D = parseInt(C.charAt(E), cha) - add;
if (D >= add) {
D = D - plus
}
B += (D).toString(cha);
if (D > H) {
I = E;
H = D
}
}
var A = parseInt(B.substring(0, I), digi);
var F = parseInt(B.substring(I + 1), digi);
var L = (A + F - parseInt(G)) / 2;
var K = (F - L) / 100000;
L /= 100000;
return {
lat: K,
lng: L
}
}
document.write(decode('HHDFJGZVVIHIJG').lat+','+decode('HHDFJGZVVIHIJG').lng);这个JS函数的功能怎么用PHP写呀。。谢谢了,这个函数运行结果:39.09917,117.22348
var digi=16;
var add= 10;
var plus=7;
var cha=36;
var I = -1;
var H = 0;
var B = "";
var J = C.length;
var G = C.charCodeAt(J - 1);
C = C.substring(0, J - 1);
J--;
for (var E = 0; E < J; E++) {
var D = parseInt(C.charAt(E), cha) - add;
if (D >= add) {
D = D - plus
}
B += (D).toString(cha);
if (D > H) {
I = E;
H = D
}
}
var A = parseInt(B.substring(0, I), digi);
var F = parseInt(B.substring(I + 1), digi);
var L = (A + F - parseInt(G)) / 2;
var K = (F - L) / 100000;
L /= 100000;
return {
lat: K,
lng: L
}
}
document.write(decode('HHDFJGZVVIHIJG').lat+','+decode('HHDFJGZVVIHIJG').lng);这个JS函数的功能怎么用PHP写呀。。谢谢了,这个函数运行结果:39.09917,117.22348
$digi = 16;
$add = 10;
$plus = 7;
$cha = 36;
$I = -1;
$H = 0;
$B = "";
$J = strlen($C);
$G = ord($C{$J - 1});
$C = substr($C, 0, -1);
$J--;
for ($E = 0; $E < $J; $E++) {
$D = base_convert($C{$E}, $cha, 10) - $add;
if ($D >= $add) {
$D = $D - $plus;
}
$B .= base_convert($D, 10, $cha);
if ($D > $H) {
$I = $E;
$H = $D;
}
}
$A = base_convert(substr($B,0, $I), $digi, 10);
$F = base_convert(substr($B, $I + 1), $digi, 10);
$L = ($A + $F - $G) / 2;
$K = ($F - $L) / 100000;
$L /= 100000;
return array( 'lat' => $K, 'lng' => $L);
}
Array ( [lat] => 39.09917 [lng] => 117.22348 )