用PHP函数生成像密码一样的字母字符串，比如当需要为用户生成随机密码的时候，就可以用本方法来实现。本函数的特点是，可以自定义生成的字符串长度，如果需要数字+字母混合型字符串，可修改vocal数组的字符。

<?php
function readable_random_string($length = 6){
    $conso=array("b","c","d","f","g","h","j","k","l",
    "m","n","p","r","s","t","v","w","x","y","z");
    $vocal=array("a","e","i","o","u");
    $password="";
    srand ((double)microtime()*1000000);
    $max = $length/2;
    for($i=1; $i<=$max; $i++)
    {
    $password.=$conso[rand(0,19)];
    $password.=$vocal[rand(0,4)];
    }
    return $password;
}
?>

在PHP中的使用方法如下

echo readable_random_string();
//输出结果：yuheha

如果你想生成数字+字母指定位数的随机密码，参考：PHP如何生成数字字符混合型字符串