<?php
function string_shift_left($input, $inputlen, $bits, &$output = null)
{
$skip = (int) ($bits / 8);
$copylen = (int) ($inputlen - $skip);
$offset = $bits % 8;
$mask = 0xff >> $offset;
$output = str_pad('', $inputlen + 1, "\x00");
var_dump($skip, $copylen, $offset, $mask, $output);
if ($offset == 0) {
/* Shifting multiples of 8 allows us to simply copy the relevant bytes */
for ($i = 0; $i < $copylen; $i++) {
$output[$i] = $input[$i + $skip];
}
return;
}
for ($i = 0; $i < $copylen; $i++) {
$left = (ord($input[$i + $skip]) << $offset);
$right = (ord($input[$i + $skip + 1]) & $mask);
printf("%08b|%08b\n", $left, $right);
$output[$i] = chr( | );
}
}
string_shift_left("\x01\x01\x00", 2, 7, $output);
for ($i = 0; $i < strlen($output); $i++) {
printf('%08b|', ord($output[$i]));
}
- Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.27
- Parse error: syntax error, unexpected '|', expecting ')' in /in/A30ph on line 26
Process exited with code 255.
preferences:
173.71 ms | 1395 KiB | 64 Q