<?php
function gdr_encode($val) {
$bin = '';
while ($val > 0) {
$bin .= chr($val & 0xFF);
$val >>= 8;
}
return str_replace(array('/', '='), array('_', ''), base64_encode($bin));
}
function gdr_decode($str) {
$bin = base64_decode(str_replace('_', '/', $str));
$val = 0;
for ($i=strlen($bin)-1; $i>=0; $i--) {
$val |= ord($bin[$i]) << $i*8;
}
return $val;
}
$vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000 4294967295, 4294967296);
foreach ($vals as $val) {
$enc = gdr_encode($val);
$dec = gdr_decode($enc);
if ($val === $dec) {
echo "$enc $val\n";
} else {
echo "$enc $valĀ ERROR: gdr_decode($enc) == $dec\n";
}
}
- Output for 5.4.0 - 5.4.31
- Parse error: syntax error, unexpected '4294967295' (T_LNUMBER), expecting ')' in /in/RmohZ on line 21
Process exited with code 255. - Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
- Parse error: syntax error, unexpected T_LNUMBER, expecting ')' in /in/RmohZ on line 21
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected T_LNUMBER, expecting ')' in /in/RmohZ on line 21
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error, expecting `')'' in /in/RmohZ on line 21
Process exited with code 255.
preferences:
210.29 ms | 1395 KiB | 122 Q