Please make sure you post all the details in order to obtain more information about the code.
Anyway, the first decode is:
$O000O0O00 = fopen($OOO0O0O00, 'rb');while (--$O00O00O00) {
fgets($O000O0O00, 1024);
}
fgets($O000O0O00, 4096);
$OO00O00O0 = (base64_decode(strtr(fread($O000O0O00...