//---------------以下为加密函数（复制过去就行了）-----------------
function keyED( $txt , $encrypt_key ){
$encrypt_key = md5( $encrypt_key );
$ctr =0;
$tmp = "" ;
for ( $i =0; $i <</code> strlen($txt);$i++)
{
if ( $ctr == strlen ( $encrypt_key ))
$ctr =0;
$tmp .= substr ( $txt , $i ,1) ^ substr ( $encrypt_key , $ctr ,1);
$ctr ++;
}
return $tmp ;
}
function encrypt( $txt , $key ) {
$encrypt_key = md5(mt_rand(0,100));
$ctr =0;
$tmp = "" ;
for ( $i =0; $i <</code> strlen($txt);$i++)
{
if ( $ctr == strlen ( $encrypt_key ))
$ctr =0;
$tmp .= substr ( $encrypt_key , $ctr ,1) . ( substr ( $txt , $i ,1) ^ substr ( $encrypt_key , $ctr ,1));
$ctr ++;
}
return keyED( $tmp , $key );
}
function decrypt( $txt , $key ){
$txt = keyED( $txt , $key );
$tmp = "" ;
for ( $i =0; $i <</code> strlen($txt);$i++)
{
$md5 = substr ( $txt , $i ,1);
$i ++;
$tmp .= ( substr ( $txt , $i ,1) ^ $md5 );
}
return $tmp ;
}
function encrypt_url( $url , $key ){
return rawurlencode( base64_encode (encrypt( $url , $key )));
}
function decrypt_url( $url , $key ){
return decrypt( base64_decode (rawurldecode( $url )), $key );
}
function geturl( $str , $key ){
$str = decrypt_url( $str , $key );
$url_array = explode ( '&' , $str );
if ( is_array ( $url_array ))
{
foreach ( $url_array as $var )
{
$var_array = explode ( "=" , $var );
$vars [ $var_array [0]]= $var_array [1];
}
}
return $vars ;
}
//---------------以上为加密函数-结束（复制过去就行了）-----------------
原文链接：https://www.cnblogs.com/lxwphp/p/15454991.html
原创文章，作者：优速盾-小U，如若转载，请注明出处：https://www.cdnb.net/bbs/archives/18559
