I am wondering if there is a rot5 function for PHP equalivant too
function rot5(str) {
var s = [];
for (i = 0; i < str.length; i ++)
{
idx = str.charCodeAt(i);
if ((idx >= 48) && (idx <= 57))
{
if (idx <= 52)
{
s[i] = String.fromCharCode(((idx + 5)));
}
else
{
s[i] = String.fromCharCode(((idx - 5)));
}
}
else
{
s[i] = String.fromCharCode(idx);
}
}
return s.join('');
}
In javascript? If not then how can I do fromCharCode
and charCodeAt
in PHP?