Help in Converting Small Python Code to PHP

Question

Hello,

please i need some help in converting a python code to a php syntax the code is for generating an alphanumeric code using alpha encoding

the code :

def mkcpl(x):  
    x = ord(x)  
    set="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"  
    for c in set:  
        d = ord(c)^x  
        if chr(d) in set:  
            return 0,c,chr(d)  
        if chr(0xff^d) in set:  
            return 1,c,chr(0xff^d)  
    raise Exception,"No encoding found for %#02x"%x  


def mkalphadecryptloader(shcode):  
    s="hAAAAX5AAAAHPPPPPPPPa"  
    shcode=list(shcode)  
    shcode.reverse()  
    shcode = "".join(shcode)  
    shcode += "\x90"*((-len(shcode))%4)  
    for b in range(len(shcode)/4):  
        T,C,D = 0,"",""  
        for i in range(4):  
            t,c,d = mkcpl(shcode[4*b+i])  
            T += t << i  
            C = c+C  
            D = d+D  
        s += "h%sX5%sP" % (C,D)  
        if T > 0:  
            s += "TY"  
            T = (2*T^T)%16  
            for i in range(4):  
                if T & 1:  
                    s += "19"  
                T >>= 1  
                if T == 0:  
                    break  
                s += "I"  
    return s+"\xff\xe4"  

any help would be really appreciated ...

Answer 1

i will help you a little. For the rest of it, please read up on the documentation.

function mkcpl($x){
    $x=ord($x);
    $set="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    $set=str_split($set);
    foreach($set as $c){
        $d=ord($c)^$x;
        if( in_array( chr($d) ,$set ) ){
            return array(0,$c,chr($d));
        }
        if ( in_array( chr(0xff^d) ,$set ) ){
            return array(0,$c,chr(0xff^$d));
        }
    }
}

function mkalphadecryptloader($shcode){
    $s="hAAAAX5AAAAHPPPPPPPPa";
    # you could use strrev()
    $shcode=str_split($shcode);
    $shcode=array_reverse($shcode);
    $shcode=implode("",$shcode);
    # continue on... read the documentation
}

print_r(mkcpl("A"));
mkalphadecryptloader("abc");



Python:                                PHP

len() - length of string/array.        strlen(),count() 
range() - generate range of numbers    for($i=0;$i<=number;$i++)
<<                                     <<

the rest of them, like +=, == etc are pretty much the same across the 2 languages.

Answer 2

Thanks a lot ghostdog74, i got it now and going to resume the rest of the job in php

really appreciated and stackoverflow.com is the right place for helping everybody

Thanks again Sir :)

Answer 3

the rest of them, like +=, == etc are pretty much the same across the 2 languages.

Careful; in PHP string concatenation is accomplished using .= not +=. If you try to use += PHP will try to evaluate the expression mathematically (probably returning a null) and you'll be pulling your hair out trying to figure out what's wrong with your script.