php生成短连接以及appkey

php生成短连接以及appkey ，老年人记忆系列，记不住就copy一下提高效率

短连接

公共函数(64进制与10进制转换)

<?php
function b64dec($b64) { //64进制转换成10进制
    $map = array(
        '0'=>0,'1'=>1,'2'=>2,'3'=>3,'4'=>4,'5'=>5,'6'=>6,'7'=>7,'8'=>8,'9'=>9,
        'A'=>10,'B'=>11,'C'=>12,'D'=>13,'E'=>14,'F'=>15,'G'=>16,'H'=>17,'I'=>18,'J'=>19,
        'K'=>20,'L'=>21,'M'=>22,'N'=>23,'O'=>24,'P'=>25,'Q'=>26,'R'=>27,'S'=>28,'T'=>29,
        'U'=>30,'V'=>31,'W'=>32,'X'=>33,'Y'=>34,'Z'=>35,'a'=>36,'b'=>37,'c'=>38,'d'=>39,
        'e'=>40,'f'=>41,'g'=>42,'h'=>43,'i'=>44,'j'=>45,'k'=>46,'l'=>47,'m'=>48,'n'=>49,
        'o'=>50,'p'=>51,'q'=>52,'r'=>53,'s'=>54,'t'=>55,'u'=>56,'v'=>57,'w'=>58,'x'=>59,
        'y'=>60,'z'=>61,'_'=>62,'='=>63
    );
    $dec = 0;
    $len = strlen($b64);
    for ($i = 0; $i < $len; $i++) {
        $b = $map[$b64{$i}];
        if ($b === NULL) {
            return FALSE;
        }
        $j = $len - $i - 1;
        $dec += ($j == 0 ? $b : (2 << (6 * $j - 1)) * $b);
    }
    return $dec;
}
function decb64($dec) { //10进制转换成64进制
    if ($dec < 0) {
        return FALSE;
    }
    $map = array(
        0=>'0',1=>'1',2=>'2',3=>'3',4=>'4',5=>'5',6=>'6',7=>'7',8=>'8',9=>'9',
        10=>'A',11=>'B',12=>'C',13=>'D',14=>'E',15=>'F',16=>'G',17=>'H',18=>'I',19=>'J',
        20=>'K',21=>'L',22=>'M',23=>'N',24=>'O',25=>'P',26=>'Q',27=>'R',28=>'S',29=>'T',
        30=>'U',31=>'V',32=>'W',33=>'X',34=>'Y',35=>'Z',36=>'a',37=>'b',38=>'c',39=>'d',
        40=>'e',41=>'f',42=>'g',43=>'h',44=>'i',45=>'j',46=>'k',47=>'l',48=>'m',49=>'n',
        50=>'o',51=>'p',52=>'q',53=>'r',54=>'s',55=>'t',56=>'u',57=>'v',58=>'w',59=>'x',
        60=>'y',61=>'z',62=>'_',63=>'=',
    );
    $b64 = '';
    do {
        $b64 = $map[($dec % 64)] . $b64;
        $dec /= 64;
    } while ($dec >= 1);
    return $b64;
    
}

生成短链laravel写法举例

$id=19950694; 
$url=$this->decb64($id);//$id 该url的id
$short_url="http://xxx.xxx.cn/".$url;
\DB::table('url')->where('id',$id)->update(['shorturl'=>$short_url]);
return $short_url;

结果为：

http://xxx.xxx.cn/1C6nc

使用短链laravel写法举例

$code=1C6nc;
$id=$this->b64dec($code);
$res=\DB::table('trackzis')->where('id',$id)->first(['realurl','appkey']);
//realurl为真实链接地址
$link=$res['realurl'];

//其他逻辑

header("Location: $link");exit;//跳转

appkey

只需唯一即可如何定义都行

 $appkey = md5($uid.'__'.$name.'__'.time());
//uid用户id  name软件名称 time()当前时间戳