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PHP代码加密_解密

2014-02-08 15:13 656 查看
<?php
/*
@名称:PHP加密/解密
@更新:2009年9月22日 20:23:47
*/
function phpencode($code) {
$code = str_replace(array('<?php','?>','<?PHP'),array('','',''),$code);
$encode = base64_encode(gzdeflate($code)); // 开始编码
$encode = '<?php'."\neval(gzinflate(base64_decode("."'".$encode."'".")));\n?>";
return $encode;
}

function phpdecode($code) {
$code = str_replace(array('<?php','<?PHP',"eval(gzinflate(base64_decode('","')));",'?>'),array('','','','','',''),$code);
$decode = base64_decode($code);
$decode = @gzinflate($decode);
return $decode;
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>PHP加密/解密</title>
<style type="text/css" media="all">
html, body {
margin: 0;padding: 0;
}

body {
color: #333;
font: 12px Tahoma,Lucida Grande, sans-serif;
margin: 9%;
}

a {
color: #0055CC;
}

img {
border: 0px solid #CCC;
}

h1 {
margin: 0;
}

h3 {
color: #555;
font-size: 1.6em;
font-weight: normal;
margin: 0;
}

pre {
color: #0055CC;
font-size: 1.1em;
line-height: 1.2;
margin: 0.25em 0;
}

p {
margin: 0.65em 0;
}

#ads {
border-left: 1px solid #eee;
float: right;
margin: 0 0 2em 2.5em;
padding-left: 3px;
width: 160px;
}

#source {
margin-bottom: 2.5em;
}

pre {
overflow: auto;
padding:1em 0;
}

h2 {
position: relative;
top: 0.5em;
}
</style>
</head>

<body>

<h3>PHP加密/解密</h3>
<form method="post">
<textarea name="source" cols="55" rows="8">
<?php
if(!empty($_POST['source'])) {
if($_POST['button']=='加密') {
echo htmlspecialchars(phpencode(stripcslashes($_POST['source'])));
}
if($_POST['button']=='解密') {
echo htmlspecialchars(phpdecode(stripcslashes($_POST['source'])));
}
}
?>
</textarea>

<?php
if(!empty($_POST['source'])){
if($_POST['button']=='加密') {
echo '<br /><br />加密成功.';
}
if($_POST['button']=='解密') {
echo '<br /><br />解密成功.';
}
}else{
echo '<br /><br />利用 base64+gzinflate 对您的PHP代码进行压缩,可以一定程度上保护您的代码版权和减小代码的体积。';
}
?>

<br /><br />
<input type="submit" name="button" value="加密">
<input type="submit" name="button" value="解密">
</form>

</body>
</html>
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