问在linux上的二进制文件中提取特定偏移量后的字符串到x00。

EN

// Open the file for read
$fp = fopen($fileName, "rb");
// Set the file pointer to a byte offset of 138 to begin reading
fseek($fp, 138);
$reached = false;
$buffer = "";
// Read into the buffer until we reac 0x00
do {
    $buffer .= fread($fp, 8192);
    $end = strpos($buffer, "\x00");
    if ($end !== false || feof($fp)) {
        $str = substr($buffer, 0, $end);
        $reached = true;
    }
} while(!$reached);

// $str will contain the string you're looking for