方法一：
加密方法二：
\'.$'.$q1.'($'.$q3.'($'.$q4.'($'.$q2.',$'.$q5.'*2),$'.$q4.'($'.$q2.',$'.$q5.',$'.$q5.'),$'.$q4.'($'.$q2.',0,$'.$q5.'))));').'));';
$s = '';
//echo $s;
// 生成 加密后的php文件
$fpp1 = fopen('temp_'.$filename, 'w');
fwrite($fpp1, $s) or die('写文件错误');
?>
加密方法三：
setiter(32);
}
function setiter($n_iter)
{
$this->n_iter = $n_iter;
}
function getiter()
{
return $this->n_iter;
}
function encrypt($data, $key)
{
$n = $this->_resize($data, 4);
$data_long[0] = $n;
$n_data_long = $this->_str2long(1, $data, $data_long);
$n = count($data_long);
if (($n & 1) == 1) {
$data_long[$n] = chr(0);
$n_data_long++;
}
$this->_resize($key, 16, true);
if ( '' == $key )
$key = '0000000000000000';
$n_key_long = $this->_str2long(0, $key, $key_long);
$enc_data = '';
$w = array(0, 0);
$j = 0;
$k = array(0, 0, 0, 0);
for ($i = 0; $i _long2str($w[0]);
$enc_data .= $this->_long2str($w[1]);
}
return $enc_data;
}
function decrypt($enc_data, $key)
{
$n_enc_data_long = $this->_str2long(0, $enc_data, $enc_data_long);
$this->_resize($key, 16, true);
if ( '' == $key )
$key = '0000000000000000';
$n_key_long = $this->_str2long(0, $key, $key_long);
$data = '';
$w = array(0, 0);
$j = 0;
$len = 0;
$k = array(0, 0, 0, 0);
$pos = 0;
for ($i = 0; $i _long2str($w[1]), 0, $len % 4);
}
} else {
$pos = ($i - 1) * 4;
if ($pos + 4 _long2str($w[0]);
if ($pos + 8 _long2str($w[1]);
} elseif ($pos + 4 _long2str($w[1]), 0, $len % 4);
}
} else {
$data .= substr($this->_long2str($w[0]), 0, $len % 4);
}
}
}
return $data;
}
function _encipherlong($y, $z, &$w, &$k)
{
$sum = (integer) 0;
$delta = 0x9e3779b9;
$n = (integer) $this->n_iter;
while ($n-- > 0) {
$y = $this->_add($y,
$this->_add($z _add($sum, $k[$sum & 3]));
$sum = $this->_add($sum, $delta);
$z = $this->_add($z,
$this->_add($y _add($sum, $k[$this->_rshift($sum, 11) & 3]));
}
$w[0] = $y;
$w[1] = $z;
}
function _decipherlong($y, $z, &$w, &$k)
{
$sum = 0xc6ef3720;
$delta = 0x9e3779b9;
$n = (integer) $this->n_iter;
while ($n-- > 0) {
$z = $this->_add($z,
-($this->_add($y _add($sum, $k[$this->_rshift($sum, 11) & 3])));
$sum = $this->_add($sum, -$delta);
$y = $this->_add($y,
-($this->_add($z _add($sum, $k[$sum & 3])));
}
$w[0] = $y;
$w[1] = $z;
}
function _resize(&$data, $size, $nonull = false)
{
$n = strlen($data);
$nmod = $n % $size;
if ( 0 == $nmod )
$nmod = $size;
if ($nmod > 0) {
if ($nonull) {
for ($i = $n; $i >= $n;
$integer |= 1 = $n;
}
return $integer;
}
function _add($i1, $i2)
{
$result = 0.0;
foreach (func_get_args() as $value) {
if (0.0 > $value) {
$value -= 1.0 + 0xffffffff;
}
$result += $value;
}
if (0xffffffff $result) {
$result = fmod($result, 0xffffffff + 1);
}
if (0x7fffffff $result) {
$result += 0xffffffff + 1.0;
}
return $result;
}
}
?>
使用方法参考如下：
// 加密过程
view sourceprint?
$text_file = s_root . './456.php';
$str = @file_get_contents($text_file);
require_once s_root . ./text_auth.php;
$text_auth = new text_auth(64);
$str = $text_auth->encrypt($str, qianyunlai.com);
$filename = s_root . './789.php'; // 加密后的文本为二进制，普通的文本编辑器无法正常查看
file_put_contents($filename, $str);
// 解密过程
view sourceprint
?01 $text_file = s_root . './789.php';
$str = @file_get_contents($text_file);
require_once s_root . ./text_auth.php;
$text_auth = new text_auth(64);
$str = $text_auth->decrypt($str, qianyunlai.com);
$filename = s_root . './456.php';
file_put_contents($filename, $str);
该方法可以对文本的内容进行 二进制加密 与 解密。
以上几种方法各有各的优点和用处，大家也选择使用。