Online PHP editor | output for Uf2K0

@ 2014-04-14T13:51:24Z

<?php

function string_shift_left($input, $inputlen, $bits, &$output = null)
{
	$skip = (int) ($bits / 8);
	$copylen = (int) ($inputlen - $skip);
	$offset = $bits % 8;
	$mask = (0xff >> $offset) << (8 - $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) >> $offset;
        printf("%08b|%08b\n", $left, $right);
		$output[$i] = chr($left | $right); 
	}
}
//0b000100010001000100000000;

string_shift_left("\x11\x11\x00", 2, 3, $output);

for ($i = 0; $i < strlen($output); $i++) {
    printf('%08b|', ord($output[$i]));
}

Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: int(0) int(2) int(3) int(992) string(3) "" 10001000|00000000 10001000|00000000 10001000|10001000|00000000|
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 int(0) int(2) int(3) int(992) string(3) "" 10001000|00000000 10001000|00000000 10001000|10001000|00000000|
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected '=', expecting ')' in /in/Uf2K0 on line 3
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: Parse error: parse error, unexpected '=', expecting ')' in /in/Uf2K0 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `')'' in /in/Uf2K0 on line 3
Process exited with code 255.

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