如何使用PHP实现短域名互转？下面的代码可以帮助你实现
非常简单
需要的朋友可以参考下
复制代码 代码如下:
/**
* 短域名生成&解析类
*/
class Build_URL {
private $mem;
private $base_url = ;
public function __construct() {
$mem_conf = array(
array(
host =>
port =>
)
array(
host =>
port =>
)
);
$this>mem = new Memcache();
foreach ($mem_conf as $v) {
$this>mem>addServer($v[host] $v[port]);
}
}
public function encode($url) {
$url = trim($url);
if(!preg_match("#^[http://|https://|ftp://]#iS" $url)) {
return false;
}
$md = md($url);
$aid = $this>mem>get($md);
if(!$aid) {
if(($aid = $this>mem>increment(auto_increment_id)) === false) {
$this>mem>set(auto_increment_id );
$aid = $this>mem>increment(auto_increment_id);
}
$this>mem>set($md $aid);
$key = $this>decany($aid);
$this>mem>set($key $url);
} else {
$key = $this>decany($aid);
}
return $this>base_url$key;
}
public function decode($url) {
$key = str_replace($this>base_url trim($url));
return $this>mem>get($key);
}
private function decany($num $base= $index=false) {
$out = ;
if (! $base ) {
$base = strlen($index);
} else if (! $index ) {
$index = substr("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" $base);
}
$t = ($num == ) ? : floor(log($num) / log($base));
for ($t; $t >= ; $t) {
$a = floor($num / pow( $base $t ));
$out = $out substr($index $a );
$num = $num ($a * pow( $base $t ));
}
return $out;
}
}
$app = new Build_URL();
$url = array(
);
foreach ($url as $v) {
$sort = $app>encode($v);
echo "sort link: "$sort"n";
$original = $app>decode($sort);
echo "original: "$original"n";
}
?>
