最近用wordpress来做英文的博客，需要虚构一些随机的英文用户名来冒充访客发表评论，因为对PHP不熟悉(压根没学过)，只能在百度和google查找方法。办法有3个:

1、随机字母数字组合法

这个方法的思路：26个字母大小写 +10个数字(0~9) 随机组合成6到10个的字符串最为用户名，代码如下：

function random_user($len = 8)

{

$user = '';

$lchar = 0;

$char = 0;

for($i = 0; $i < $len; $i++)

{

while($char == $lchar)

{

$char = rand(48, 109);

if($char > 57) $char += 7;

if($char > 90) $char += 6;

}

$user .= chr($char);

$lchar = $char;

}

return $user;

}

调用方法(默认生成8个字符串)：

生产的英文用户名如下：

4c3yXssf，6IG0bdfa，u5NDh5d3，spBhdgPn，49otf8ub，NE8zg2dS

缺点很明显：不靠谱，可读性差，一看就知道是代码生成的。

2、调用现成的API

这个思路也很简单，直接调用可以生成用户数据的API，当然前提是要有这种API才行。我google一下，还真给我找着了：

https://randomuser.me/api/

以json格式直接返回一个用户的各种信息，包括：姓名，性格，年龄，城市，邮箱，头像等等…. 。下面是返回的数据：

{"results":[

{

"gender":"female",

"name":{

"title":"miss",

"first":"frida",

"last":"christiansen"

},

"location":{

"street":"2087 oddenvej",

"city":"ulsted, hals",

"state":"danmark",

"postcode":33076

},

"email":"frida.christiansen@example.com",

"login":{

"username":"brownostrich869",

"password":"blacks",

"salt":"hnroL361",

"md5":"e77b5d194fa24307d94166fdb073489a",

"sha1":"1f7c5119845d31071035ba786cfd1829ca4188de",

"sha256":"37e202da9ee700e3b21a1260de0f2697f2a75357cacd6124e73eee39b21c0f05"

},

"dob":"1977-04-27 18:44:16",

"registered":"2014-12-11 11:11:29",

"phone":"97377508",

"cell":"04206356",

"id":{

"name":"CPR",

"value":"018563-3343"

},

"picture":{

"large":"https://randomuser.me/api/portraits/women/58.jpg",

"medium":"https://randomuser.me/api/portraits/med/women/58.jpg",

"thumbnail":"https://randomuser.me/api/portraits/thumb/women/58.jpg"

},

"nat":"DK"

}

],

"info":{

"seed":"9c5a7af03b97edcf",

"results":1,

"page":1,

"version":"1.1"

}

}

使用说明文档：

https://randomuser.me/documentation

如果使用python调用和处理这个API是没有问题的，但是对于php我就毫无头绪了，只能放弃这个方法。

思路可行，能力有限，日后再研

3、字典随机组合法

方法思路：找出外国人最常用的姓(Most Common Surnames)，最常用的名(Most Common Male Names，Most Common Female Names)，再随机组合成一个常用的英文用户名。

function random_user()

{

$male_names = array("James","John","Robert","Michael","William","David","Richard","Charles","Joseph","Thomas","Christopher","Daniel","Paul","Mark","Donald","George","Kenneth","Steven","Edward");

$famale_names = array("Mary","Patricia","Linda","Barbara","Elizabeth","Jennifer","Maria","Susan","Margaret","Dorothy","Lisa","Nancy","Karen","Betty","Helen","Sandra","Donna","Carol","Ruth");

$surnames = array("Smith","Jones","Taylor","Williams","Brown","Davies","Evans","Wilson","Thomas","Roberts","Johnson","Lewis","Walker","Robinson","Wood","Thompson","White","Watson","Jackson");

$frist_num = mt_rand(0,19);

$sur_num = mt_rand(0,19);

$type = rand(0,1);

if($type==0){

$username=$male_names[$frist_num]." ".$surnames[$sur_num];

} else {

$username=$famale_names[$frist_num]." ".$surnames[$sur_num];

}

return $username;

}

这里使用了20个常用男性名，20常用个女性名，20个常用的姓来组合用户名，如果需要更多的数据可以看看这里：外国人最常用的100个姓，最常用的100个名。

调用的方法和上面是一样的，生成的英文用户名如下：

Mary Williams，Daniel Johnson，John Jones，Maria Evans，Donna Smith，Barbara Smith

可以看出这个方法生成的英文用户名很靠谱，可读性高，而且可生成数量众多(20*20+20*20 共800个)。最后我也是使用了这个函数。

这个三个方法的思路同样可用于生成中文用户名。