分享2种PHP的源码加密方式，此加密方法支持任意PHP版。

注意，加密后的PHP代码无需第三方工具解密，像往常一样，直接运行即可。

function encode_file_contents($filename) {

$type=strtolower(substr(strrchr($filename,'.'),1));

if ('php' == $type && is_file($filename) && is_writable($filename)) { // 如果是PHP文件 并且可写 则进行压缩编码

$contents = file_get_contents($filename); // 判断文件是否已经被编码处理

$contents = php_strip_whitespace($filename);

// 去除PHP头部和尾部标识

$headerPos = strpos($contents,'<?php ');

$footerPos = strrpos($contents,'?>');

$contents = substr($contents, $headerPos + 5, $footerPos - $headerPos);

$encode = base64_encode(gzdeflate($contents)); // 开始编码

$encode = '<?php '."\n eval(gzinflate(base64_decode("."'".$encode."'".")));\n\n?>";

return file_put_contents($filename, $encode);

}

return false;

}

//调用函数

$filename = 'dam.php';

encode_file_contents($filename);

echo "OK,加密完成！"

?>

加密方式2：

function RandAbc($length = "") { // 返回随机字符串

$str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

return str_shuffle($str);

}

$filename = 'index.php'; //要加密的文件

$T_k1 = RandAbc(); //随机密匙1

$T_k2 = RandAbc(); //随机密匙2

$vstr = file_get_contents($filename);

$v1 = base64_encode($vstr);

$c = strtr($v1, $T_k1, $T_k2); //根据密匙替换对应字符。

$c = $T_k1.$T_k2.$c;

$q1 = "O00O0O";

$q2 = "O0O000";

$q3 = "O0OO00";

$q4 = "OO0O00";

$q5 = "OO0000";

$q6 = "O00OO0";

$s = '$'.$q6.'=urldecode("%6E1%7A%62%2F%6D%615%5C%76%740%6928%2D%70%78%75%71%79%2A6%6C%72%6B%64%679%5F%65%68%63%73%77%6F4%2B%6637%6A");$'.$q1.'=$'.$q6.'{3}.$'.$q6.'{6}.$'.$q6.'{33}.$'.$q6.'{30};$'.$q3.'=$'.$q6.'{33}.$'.$q6.'{10}.$'.$q6.'{24}.$'.$q6.'{10}.$'.$q6.'{24};$'.$q4.'=$'.$q3.'{0}.$'.$q6.'{18}.$'.$q6.'{3}.$'.$q3.'{0}.$'.$q3.'{1}.$'.$q6.'{24};$'.$q5.'=$'.$q6.'{7}.$'.$q6.'{13};$'.$q1.'.=$'.$q6.'{22}.$'.$q6.'{36}.$'.$q6.'{29}.$'.$q6.'{26}.$'.$q6.'{30}.$'.$q6.'{32}.$'.$q6.'{35}.$'.$q6.'{26}.$'.$q6.'{30};eval($'.$q1.'("'.base64_encode('$'.$q2.'="'.$c.'";eval(\'?>\'.$'.$q1.'($'.$q3.'($'.$q4.'($'.$q2.',$'.$q5.'*2),$'.$q4.'($'.$q2.',$'.$q5.',$'.$q5.'),$'.$q4.'($'.$q2.',0,$'.$q5.'))));').'"));';

$s = '<?php '."\n".$s."\n".' ?>';

//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');

?>

其实，PHP加密源码方式有很多，譬如，免费的微盾PHP加密，还有 www.phpjm.net 搞的在线加密，只是phpjm更复杂点而已。

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

另外，分享一个 PHP类，它能对 文本的内容进行 二进制加密 与 解密，代码如下：

class text_auth

{

var $n_iter;

function text_auth()

{

$this->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 < $n_data_long; ++$i) {

if ($j + 4 <= $n_key_long) {

$k[0] = $key_long[$j];

$k[1] = $key_long[$j + 1];

$k[2] = $key_long[$j + 2];

$k[3] = $key_long[$j + 3];

} else {

$k[0] = $key_long[$j % $n_key_long];

$k[1] = $key_long[($j + 1) % $n_key_long];

$k[2] = $key_long[($j + 2) % $n_key_long];

$k[3] = $key_long[($j + 3) % $n_key_long];

}

$j = ($j + 4) % $n_key_long;

$this->_encipherLong($data_long[$i], $data_long[++$i], $w, $k);

$enc_data .= $this->_long2str($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 < $n_enc_data_long; $i += 2) {

if ($j + 4 <= $n_key_long) {

$k[0] = $key_long[$j];

$k[1] = $key_long[$j + 1];

$k[2] = $key_long[$j + 2];

$k[3] = $key_long[$j + 3];

} else {

$k[0] = $key_long[$j % $n_key_long];

$k[1] = $key_long[($j + 1) % $n_key_long];

$k[2] = $key_long[($j + 2) % $n_key_long];

$k[3] = $key_long[($j + 3) % $n_key_long];

}

$j = ($j + 4) % $n_key_long;

$this->_decipherLong($enc_data_long[$i], $enc_data_long[$i + 1], $w, $k);

if (0 == $i) {

$len = $w[0];

if (4 <= $len) {

$data .= $this->_long2str($w[1]);

} else {

$data .= substr($this->_long2str($w[1]), 0, $len % 4);

}

} else {

$pos = ($i - 1) * 4;

if ($pos + 4 <= $len) {

$data .= $this->_long2str($w[0]);

if ($pos + 8 <= $len) {

$data .= $this->_long2str($w[1]);

} elseif ($pos + 4 < $len) {

$data .= substr($this->_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 << 4 ^ $this->_rshift($z, 5), $z) ^

$this->_add($sum, $k[$sum & 3]));

$sum    = $this->_add($sum, $delta);

$z      = $this->_add($z,

$this->_add($y << 4 ^ $this->_rshift($y, 5), $y) ^

$this->_add($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 << 4 ^ $this->_rshift($y, 5), $y) ^

$this->_add($sum, $k[$this->_rshift($sum, 11) & 3])));

$sum    = $this->_add($sum, -$delta);

$y      = $this->_add($y,

-($this->_add($z << 4 ^ $this->_rshift($z, 5), $z) ^

$this->_add($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 - $nmod + $size; ++$i) {

$data[$i] = $data[$i % $n];

}

} else {

for ($i = $n; $i < $n - $nmod + $size; ++$i) {

$data[$i] = chr(0);

}

}

}

return $n;

}

function _hex2bin($str)

{

$len = strlen($str);

return pack('H' . $len, $str);

}

function _str2long($start, &$data, &$data_long)

{

$n = strlen($data);

$tmp    = unpack('N*', $data);

$j      = $start;

foreach ($tmp as $value)

$data_long[$j++] = $value;

return $j;

}

function _long2str($l)

{

return pack('N', $l);

}

function _rshift($integer, $n)

{

if (0xffffffff < $integer || -0xffffffff > $integer) {

$integer = fmod($integer, 0xffffffff + 1);

}

if (0x7fffffff < $integer) {

$integer -= 0xffffffff + 1.0;

} elseif (-0x80000000 > $integer) {

$integer += 0xffffffff + 1.0;

}

if (0 > $integer) {

$integer &= 0x7fffffff;

$integer >>= $n;

$integer |= 1 << (31 - $n);

} else {

$integer >>= $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 || -0xffffffff > $result) {

$result = fmod($result, 0xffffffff + 1);

}

if (0x7fffffff < $result) {

$result -= 0xffffffff + 1.0;

} elseif (-0x80000000 > $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);