MikroTik

<?php
use PEAR2\Net\RouterOS;
require_once 'PEAR2_Net_RouterOS-1.0.0b5.phar';
try {
    $util = new RouterOS\Util(
        $client = new RouterOS\Client('192.168.88.1', 'admin', '')
    );

    $passAlphabet = 'abcdefghikmnpqrstuvxyz23456789';
    $passLength = 8;

    $passAlphabetLimit = strlen($passAlphabet)-1;
    $pass = '';
    for ($i = 0; $i < $passLength; ++$i) {
        $pass .= $passAlphabet[mt_rand(0, $passAlphabetLimit)];
    }

    $util
        ->setMenu('/interface wireless security-profiles')
        ->set(
            'default',
            array(
                'wpa-pre-shared-key' => $pass,
                'wpa2-pre-shared-key' => $pass
            )
        );

    echo 'New Wi-Fi password: ', $pass;
    exit(0);
} catch (Exception $e) {
    echo $e;
    exit(1);
} 

/tool fetch url="http://www.random.org/strings/\?num=1&len=8&digits=on&loweralpha=on&unique=off&format=plain&rnd=new" keep-result=yes dst-path="pass.txt"

/tool fetch url="https://www.random.org/passwords/\?num=1&len=8&format=plain&rnd=new" keep-result=yes dst-path="pass.txt"

#######################################
### WiFi Password Generator Script###
####################################### 
# mail recipients 
:local recipients { "user1@gmail.com "; "user2@gmail.com"; "user3@gmail.com"; "user5@gmail.com"; "user1@yahoo.com" }
:local fromEmail ************@gmail.com
:local prepend home
# :local wifiprofile WifiPass
:local wifiprofile 0

:local secr [/system resource get write-sect-since-reboot];
/log info message="Sector Writes Since Reboot=$secr"

:local runc [/system script get WiFiPasswordGenerator run-count];
/log info message="WiFiPasswordGenerator Run Count=$runc"

:local date1 [:pick [/system clock get date] 4 6];
/log info message="Month=$date1"

:local time1 [:pick [/system clock get time] 6 8];
/log info message="Seconds=$time1"

:local time2 [:pick [/system clock get time] 3 5];
/log info message="Minute=$time2"

:if ($date1 < 02) do={
:set date1 ("03");
};
:if ($time1 < 10) do={
:set time1 ("12");
};
:if ($time2 < 10) do={
:set time2 ("15");
};
:if ($runc < 10) do={
:set runc ("19");
}
:if ($secr < 10) do={
:set secr ("25");

}
###Remove if you want longer password###
:if ($secr > 99) do={
:set secr ("9");
};
###Remove if you want longer password###

####Use commented line below instead of the one below if you desire a longer password####
#:local newPassword ($date1 * $time1 * $time2 * $secr);  or  :local newPassword ($date1 * $time1 * $secr);
:local newPassword ($date1 * $time1 * $secr);
/log info message="Month x Seconds x Sector Writes Since Reboot=$newPassword"
:set newPassword ($prepend . $newPassword);
:log info message="Preparing To Email New WiFi Password to users"
:foreach r in=$recipients do={
:put ("Sending email to " . [:tostr $r])
/tool e-mail send from=***********@gmail.com to=[:tostr $r]  subject="WiFi AP Password" body="This Week's Wireless Password Is: $newPassword " server=173.194.67.108 port=587 start-tls=yes user=*********@gmail.com password=*******
}
# The delay 300 is for the users that is on the WiFi to get the mail before it gets change.
delay 300
# 
/caps-man security set $wifiprofile passphrase="$newPassword";
# 
:log info message="New WiFi Password Set To=$newPassword"
:log info message="New WiFi Password Has Been Emailed"
:log info message="See You Next Week"
:set newPassword ($prepend . $newPassword);
# 
:log info message="New WiFi Password Set To :$newPassword"
delay 2
/caps-man security print file=WifiPassword

:local wifiprofile "You wireless security-profiles name"
# "len=" in the url it is the number of characters for in the generated password
/tool fetch url="https://www.random.org/passwords/\?num=1&len=10&format=plain&rnd=new" keep-result=yes dst-path="pass.txt"
delay 3
# The last digit before the closing square bracket must be "len=" from url
:local newPassword [put [pick ([/file get [/file find name=pass.txt] contents]) 0 10]];
:interface wireless security-profiles set $wifiprofile wpa-pre-shared-key="$newPassword";
:interface wireless security-profiles set $wifiprofile wpa2-pre-shared-key="$newPassword";
/file remove [find name="pass.txt"];
/log info message="New Wi-Fi Pass = $newPassword"