Codes for file upload in PHP (Step 3)

  In this example, we will upload file to the designated location. So, we will create a folder to store the files we've uploaded and give name to that folder. I give it as tnw87. Ok, lets start write the following codes and discover how it works.


<?php

 $name = $_FILES['file']['name'];
 $type = $_FILES['file']['type'];
 $size = $_FILES['file']['size'];

 $tmp_name = $_FILES['file']['tmp_name'];

 if(@isset($name) && @!empty($name)){
 $location = 'tnw87/';

 if(move_uploaded_file($tmp_name, $location.$name)){
  echo $name. ' is successfully uploaded.';
 }else{
  echo 'Upload Errors';
 }

 }else{
  echo 'Please select file to upload';
 }

 ?>

Codes for file upload in PHP (Step 2)

When we upload a file into one location, the file is firstly saved in temporary location as a temp file. Ok, lets discover how it works. We will write the following codes and test it.


 <?php

 $name = $_FILES['file']['name'];
 $type = $_FILES['file']['type'];
 $size = $_FILES['file']['size'];

 $tmp_name = $_FILES['file']['tmp_name'];

 if(@isset($name) && @!empty($name)){
 $location = 'tnw87/';

 if(move_uploaded_file($tmp_name, $location.$name)){
  echo $name. ' is successfully uploaded.';
 }else{
  echo 'Upload Errors';
 }

 }else{
  echo 'Please select file to upload';
 }

 ?>

 <style type = "text/css">
 form{margin-top : 100px; margin-left : 50px;}
 </style>
 <form action = "upload.php" method = "POST" enctype = "multipart/form-data">
 <input type = "file" name = "file"></br></br>
 <input type = "submit" value = "Upload">
 </form>

Codes for File Upload in PHP (Step 1)

This is the first step to write codes for uploading file in php. In this example, you can check name, type and size of files you upload.




 <?php

 @$name = $_FILES['file']['name'];
 @$type = $_FILES['file']['type'];
 @$size = $_FILES['file']['size'];

 if(@isset($name) && @!empty($name)){
  echo 'File name is <strong> '.$name.'</strong>, File type is <strong>'.$type.'</strong> nad File size is <strong> '.$size.'</strong>';
 }else{
  echo 'Please select file to upload';
 }

 ?>

Configuring Frame Relay in Cisco Devices (Example 2)

 

        

   #Router 1#

en
config t
hostname R1
int g0/0
ip address 192.168.1.1 255.255.255.0
no shut


int s0/0/0
description Link From Router1 to Router2
ip address 223.128.1.1 255.255.255.252
encap frame-relay
frame-relay lmi-type cisco
frame-relay interface-dlci 101
no shut


int s0/0/1
encap frame-relay
no shut
exit

int s0/0/1.201 point-to-point
description Link From R1 to R3
ip address 223.128.1.5 255.255.255.252
frame-relay interface-dlci 201
no shut
exit

int s0/0/1.301 point-to-point
description Link From R1 to R4
ip address 223.128.1.9 255.255.255.252
frame-relay interface-dlci 301
no shut
exit


int s0/0/1.401 point-to-point
description Link From R1 to R5
ip address 223.128.1.13 255.255.255.252
frame-relay interface-dlci 401
no shut
exit


int s0/0/1.501 point-to-point 
description Link From R1 to R6
ip address 223.128.1.17 255.255.255.252
frame-relay interface-dlci 501
no shut
 

exit

router rip
version 2
network 192.168.1.0
network 223.128.1.0
network 223.128.1.4
network 223.128.1.8
network 223.128.1.12
network 223.128.1.16


end

copy run start

Configuring Frame Relay in Cisco Devices (Example 1)

***Router1***

en
config t
hostname Router1
int s0/0/0
encap frame-relay
no shut
exit

int s0/0/0.102 point-to-point
description Link From Router1 to Router2
ip address 223.200.100.5 255.255.255.252
frame-relay interface-dlci 102
no shut
exit


int s0/0/0.103 point-to-point
description Link From Router1 to Router3
ip address 223.200.100.9 255.255.255.252
frame-relay interface-dlci 103
no shut
exit

router rip
version 2
network 223.200.100.4
network 223.200.100.8

end
copy run start

Using XML with PHP (Example 2)

In this example, you will see using foreach function twice. Ok, let's start write codes. We will write the following xml codes and save it as file name 'example.xml'.

<producer>

      <producer>
             <food>
                   <foodname>banana</foodname>
                   <foodprice>100 kyats</foodprice>
             </food>
       </producer>

       <producer>
             <food>
                   <foodname>lime</foodname>
                   <foodprice>200 kyats</foodprice>
             </food>
        </producer>

       <producer>
             <food>
                   <foodname>milk</foodname>
                   <foodprice>300 kyats</foodprice>
             </food>
       </producer>

</producer>

Using XML with PHP (Example 1)

We will write the following codes and save it as file name 'example.xml'.

 <producer>
         <producer>
                  <name>Thet</name>
                  <age>30</age>
         </producer>

         <producer>
                  <name>Jan</name>
                  <age>21</age>
         </producer>

         <producer>
                 <name>Feb</name>
                 <age>23</age>
         </producer>

         <producer>
                  <name>Mar</name>
                  <age>25</age>
         </producer>
</producer>

WordCensoring in PHP

From the following example, we can learn the usage of form, textarea, isset, strtolower and str_replace. Every word 'love' we type in the text box, the codes will change with the word 'hate'.

<?php

$find = 'love';
$replace = 'hate';

if(isset($_POST['user_input']) && !empty($_POST['user_input'])){ 
   $user_input = strtolower($_POST['user_input']);
   $user_input_new = str_replace($find, $replace, $user_input);
   echo $user_input_new.'</br>';
}else{
  echo 'Please fill in the text box!';
}

?>

Configuring OSPF in Cisco Routers

 

***  Router 1 *** 

 Activate the connection to PC1

en
config t
int g0/0
ip address 192.168.1.1 255.255.255.0
no shut


Activate the connection to Router2

int s0/0/1
ip address 223.200.100.9 255.255.255.252
clock rate 64000
no shut


Activate the connection to Router 3

int s0/0/0
ip address 223.200.100.1 255.255.255.252
no shut
exit


Configure OSPF

router ospf 10
network 192.168.1.0 0.0.0.255 area 0
network 223.200.100.0 0.0.0.3 area 0
network 223.200.100.8 0.0.0.3 area 0

end

Save the configuration

copy run start

String Trim in PHP

<?php

$string = 'I am Thet Naing Win.';
$string_trimmed = rtrim($string);
echo $string_trimmed;

?>

Configuring PPP in Cisco Routers

This is the configuration of PPP (PAP) in Cisco Routers

 

  *** Mandalay Router ***

en
config t
username Mandalay password Mandalay
hostname Mandalay
int s0/0/0
ip address 223.200.100.1 255.255.255.252
no shut
encap ppp
ppp authentication pap
ppp pap sent-username Naypyidaw password Naypyidaw
exit

int s0/0/1
ip address 223.200.100.9 255.255.255.252
no shut
encap ppp
ppp authentication pap
ppp pap sent-username Yangon password Yangon
exit

router rip
version 2
network 223.200.100.0
end

copy run start

String Word Count in PHP

<?php

$string = 'I am Thet Naing Win and who are you?';
$string_word_count = str_word_count($string, 1);
print_r($string_word_count);

?>

Writing Basic XML Codes

*** Example 1 ***

<producer>
       <producer>
              <name>Thet</name>
              <age>30</age>
       </producer>

       <producer>
             <name>Naing</name>
             <age>32</age>
       </producer>
  
       <producer>
             <name>Win</name>
             <age>33</age>
       </producer>
</producer>

Virtualization (Installing Ubuntu in VirtualBox)

Virtualization

Virtualizatin is installing two or more operating systems in one physical     machine. The main effects of using virtualizaton are security and cost saving. Oracle  VirtualBox is one of virtualization softwares. It is open source software and totally free. Please click here to download.  Install it after downloading.

Ubuntu 

Ubuntu is one of open source operating systems. Please click here to download ubuntu ISO file.

 Installing Ubuntu in VirtualBox

 

1. Start VirtualBox

 

- Open VirtualBox and Click New.

2.Choose Name and Operating System

- Type name in the Name box (for example, T N W) 
- Choose operating system in Type box (here we will choose Linux)
- Chose version in Version box (here I will choose Ubuntu-64 bit)
- And then click Next.

String Replace in PHP

<?php

$string = 'I am thet naing win';

$find = array('thet', 'naing', 'win');
$replace = array('THET', 'NAING', 'WIN');

$string_new = str_replace($find, $replace, $string);
echo $string_new;

?>

Disable Auto Update in Windows 10

Some of us may face the problems that the windows is getting updated while we are doing urgent jobs. Or the windows is getting updated while we prepare to go back home at the time when the office is closed and the power is going to be shut down. To stop that kind of problem, we should disable auto update in windows.

To disable auto update in windows by command line

- Run command prompt as administrator
- Type net stop wuauserv in the command prompt and press enter
- Type net stop bits and press enter
- Type net stop dosvc and press enter

Header in PHP

<?php

$redirect_page = 'http://www.tnw87.com';
$redirect = true;

if($redirect == true)
{
 header('location:' .$redirect_page');
}

?>

<h1>Your connection is wrong in something</h1>

Timestamp in PHP

<?php

$time = time();
$time_current = date('d M Y @ H:i:s', $time);
$time_modified = date('d M Y @ H:i:s', tostrtime(+ 1 year));
echo 'The current time is  ' .$time_current. ' and The time modified is ' .$time_modified.'!';

?>

String Lower / Upper in PHP

We can change all characters to lower case by using strtolower. The following code is an example.

<?php

$string = 'I am ThEt NainG WiN!';
$string_low = strtolower($string);
echo $string_low;

?>

Securing Cisco Networking Devices

We should set passwords in Cisco networking devices so that non authorized people can't access easily. The followings are the ways to set passwords in Cisco networking devices by CLI.


Console Password

enable (en)
configure terminal (config t)
line console 0
password console123 (type secured password)

Checking DNS (Domain Name System)

We can use nslookup command to check dns (domain name system). How to check:

In windows,

- Press Windows + R keys together.
- Type cmd in the run box and press enter.
- Type nslookup in the command prompt and press enter.

To check dns:
- Type example.com and press enter. If your dns is working, you will see Name and IP Address.

To check website:
- Type www.example.com and press enter. If your website is working, you will see your hosting name  and IP Address.

Do While Loop in PHP

<?php

$count = 1;
$message = 'Hello!';

do {
  echo $count.'. '.$message.'</br>';
  $count ++;
}

while($count<=10)

?>

While Loop in PHP

<?php

$count = 1;
$message = 'I Love You!';

while($count<=10){
  echo $count. '.' .$message.'</br>';
  $count ++;
}

?>

If Statement in PHP

<?php

$num1 = 30;
$num2 = 40;

if($num1 > $num2){
  echo 'Num1 is greater than Num2!';
} else if($num1 == $num2){
  echo 'Num1 and Num2 are equal!';
}else{
  echo 'Num2 is greater than Num1!';
}

?>

String Length in PHP

<?php

$string = 'I am Thet Naing Win';
$strlen = strlen($string);
echo $strlen;

?>

String Position in PHP

<?php

$string = 'I am Thet Naing Win. This is PHP Testing and Word position Test. If you are insterested in PHP, please join us!';

$find = 'T';

$find_length = strlen($find);

$offset = 1;

while ($strpos = strpos($string, $find, $offset)){
  echo 'The Character <strong>'.$find. '</strong> is found at '.$strpos.'.</br>';
  $offset = $strpos + $find_length;

}

?>

HTML Form

<?php


?>

<head>
<title>html form</title>
<style type="text/css">
form{border:dotted; width:300px; height:auto; color: orange; text-align: center; margin-top:300px;}
</style>
</head>

<form action="index.html" method="POST">
<br />
UserName<br />
<input type="text" name="username"><br /><br />
Password<br />
<input type="password" name="password"><br /><br />
<input type="submit" value="Log In">
<br /><br />
</form>

Knowledge About Hard Disk

There are various types of Hard Disks. Some of them are:

IDE : Integrated Device Electronic. Known as PATA as well.
PATA : Parallel advance technology attachment
- Mostly found in Desktop computers. But, don't use so much nowadays.

SATA: Serial advance technology attachment
- Used in Laptops, Desktops and Servers.

SCSI: Small Computer System Interface

SAS: Serial attached SCSI
- Mostly found in Servers.

Using Computer Management Service in Windows

How to Open Computer Management Service Windows

- Press Windows and R keys together at the same time.
- Type compmgmt.msc in the run box and click OK.

Then, Computer Management Windows will be appeared.

There are Task Scheduler, Event Viewer, Shared Folders, Performance, Device Manager,  Disk Management and Internet Information Services (IIS) Manager.

Task Scheduler
       We can create and manage tasks in our computer.

Using Component Services In Windows

How to open component services in Windows

- Press Windows and R keys together at the same time.
- Type comexp.msc in the run box and click OK.
Then, component services window will be appeared.

In component services, we can use Event Viewer, Windows Logs and Services.

In Event Viewer, we can check all the events happened in our computers.
In Windows Logs, we can check the logs of Application, Security, Setup, System and Forward Event.

How to Configure EIGRP in Cisco Router

Router 1

Activate the connection to PC1

en
config t
int g0/0
ip address 192.168.1.1 255.255.255.0
no shut

Activate the connection to Router2

int s0/0/1
ip address 223.200.100.9 255.255.255.252
clock rate 64000
no shut


Activate the connection to Router 3
 
int s0/0/0
ip address 223.200.100.1 255.255.255.252
no shut
exit

Configure EIGRP

router eigrp 10
network 192.168.1.0 0.0.0255
network 223.200.100.0 0.0.0.3
network 223.200.100.8 0.0.0.3

end

Save the configuration

copy run start

How to configure RIP in Cisco Routers

RIP (Routing Information Protocol) is the oldest distance vector routing protocol. The maximum number of hop count is 15 and the hop count number 16 is defined as infinite distance. The converged time is slow if compared with other routing protocols such as EIGRP, OSPF and IS-IS. There are two versions in RIP: version 1 and version 2.

RIP V1

RIP v1 uses FLSM (fixed length subnet masking) and does not support VLSM(variable length subnet masking). Using FLSM causes IP wastes.

FLSM Examples,

192.168.1.0 /24
192.168.2.0 /24

RIP V2 

RIP V2 supports VLSM (variable length subnet masking). If there are different amount of hosts in an organization, we should use RIP v2.

For example,

HR Department : 20 hosts
Engineering Department: 50 hosts
IT department: 10 hosts
Sales department: 30 hosts


The following is the sample configuration of RIP in Cisco Routers.

DHCP Configuration in Cisco Router

DHCP is dynamic host configuration protocol. By configuration DHCP in a router, we don't need to give IPs to the hosts manually. DHCP automatically defines IPs for hosts. We can also configure DHCP in Cisco Routers as well.

The following is the sample configuration of DHCP in Cisco Router:


* Router *

en
config t
int g0/0
ip address 192.168.1.1 255.255.255.0
no shut
exit
ip dhcp pool Test
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 192.168.1.1
end
copy run start


If you want to see sample configuration in packet tracer, you can download pkt file. Click here.

(Note: you need to have packet tracer installed in your computer to open pkt file).

String Reverse In PHP

<?php

$string = 'I am Thet Naing Win';

$string_reversed = strrev($string);

echo $string_reversed;

?>

Cisco EtherChannel

EtherChannel is combination of two or more physical ports into one logical/virtual port for redundancy or bandwidth needs.

Click here to download pkt file.

Note: You need cisco packet tracer to open pkt file.

How To Configure EtherCahnnel in Cisco Switches:

Switch1

Step 1 : Give Name to Switch 1

en
config t
hostname IT


Step 2 : Create VLan and give name to it

vlan 20
name IT
exit


Step 3 : Create Etherchannel

interface range f0/1 - 4
switchport mode access
switchport access vlan 20
channel-group 5 mode auto 
end

Dell 5420

Some of my friends ask me about fair priced good used laptops. So, I post this post. This laptop is not bad for those who are looking for good used laptops with faired price. This laptop is good enough for office use.

Randomization in PHP

<?php

if(isset($_POST['roll'])){
  $rand = rand(000, 999);
  echo 'You roll a '.$rand;

}

?>

<form action="rand.php" method="POST">
<input type="submit" name="roll" value="Roll a Dice">
</form>

Ob Start in PHP

<?php ob_start(); ?>

<h1>Test</h1>
This is PHP Testing!

<?php

$direct_page = 'http://www.tnw87.com';
$direct = true;

if($direct == true){
  header('location: '.$direct_page);
}
ob_start_flush();

?>

Matching With Function In PHP

<?php

$string = 'I am Thet Naing Win and who are you?';
$find = '/000/';

function Match($string){
  global $string;
  global $find;
  if(preg_match($find, $string)){
   return true;
  }else{
   return false;
  }
}

if(Match($string)){
  echo 'Match Found!';
}else{
  echo 'Match Not Found!';
}

?>

Matching In PHP

<?php

$string = 'Hi How are you?. I am Thet Naing Win. Nice to meet you!';

$find = '/000/';

if (preg_match($find, $string)){
  echo 'Match Found!';
}else{
  echo 'Match Not Found!';
}

?>

How To Use foreach In PHP

<?php

$food = array('Healthy'=>array('Salad', 'Milk', 'Coconet', 'Ground_nut'), 
              'Unhealthy'=>array('Alcohol', 'Beer', 'Ice_cream'));

foreach($food as $element => $inner_element){
  echo '</br><strong>'.$element.'</strong></br>';

foreach($inner_element as $item){
  echo $item.'</br>';
}
}

?>

Array In PHP

<?php

$snack = array('Banana', 'Ice-cream', 'Coconet', 'Mango', 'Orange');

$snack[1]='Alcohol';

echo $snack[1];

//print_r($snack);

?>

Function In PHP

<?php

function Add($num1, $num2){
  $result = $num1 + $num2;
  return $result;
}

function Divide($num1, $num2){
  $result = $num1 / $num2;
  return $result;
}

$sum = Add(Add(10, 10), Divide(14, 2));
echo $sum;

?>

Calculating IP Address (Version 4)

There are four octet in IPV4. Each octet has 8 bits. So, there are 32 bits in IPV4. IPV4 is based on binary (0, 1) and decimal (0 to 9).

       1^st Octet                           2^nd Octet                       3^rd Octet                        4^th Octet

          8 bits                              8 bit                               8 bits                              8 bits

2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰   2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰   2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰   2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰

255.255.255.255              255.255.255.255                255.255.255.255          255.255.255.255

How become 255.255.255.255

2⁷  = 128 , 2⁶  = 64 ,  2⁵  = 32 , 2⁴  = 16 , 2³  = 8 , 2²  = 4 , 2¹   = 2 , 2⁰ = 1

128 + 64 + 32 + 16 + 8 + 4 + 2 + 1= 255

   Decimal                                                         Binary

192.168.1.0             =      11000000   .    10101000   .   00000001   .   00000000  

223. 200. 100. 25    =      11011111   .    11001000   .  01100100   .   00011001

172.16.31. 87          =      10101100   .   00010000   .   00011111   .  01010111

192.168.1.0/24  

                                         

1^st Octet                            2^nd Octet                          3^rd Octet                     4^th Octet

  8 bits                                  8 bit                                  8 bits                         8 bits

2⁷2⁶2⁵ 2⁴ 2³ 2² 2¹ 2⁰   2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰   2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰  2⁷ 2⁶ 2⁵ 2⁴ 2³ 2² 2¹ 2⁰

                                                   Network                                                        Host

Network Address = 192.168.1.0

Subnet Mask = 255.255.255.0

Usable IP Addresses = 192.168.1.1 to 192.168.1.254

Broadcast Address = 192.168.1.255

AVG Antivirus

If you are searching free antivirus for your PC, AVG is one of the antivirus software you can get free. There are two types of versions in AVG. One is free version and one is ultimate version.
If you want free version, click here and can download it.
If you want ultimate version, click here and can download it.

Than You.

                My Invitation 

        Download Android Application

Microsoft Windows Malicious Software Removal Tool

Hi !

Good evening to all my friends! 

Malicious Software or Malware is any software that brings harm to the computer system. It can be in the forms of virus, trojans, rootkits, worms, spyware and adware, etc,. . So you can use Microsoft Windows Malicious Software Removal Tool to remove malware from your computer if you suspect that your computer is infected by malware. You can download Microsoft Windows Malicious Software Removal Tool from Microsoft Website (click here). It is totally free. I hope you will be ok.

IT Career

Some of the youths ask me about IT careers. They don't know how to start to enter IT field although they are interested in IT so much. This post is designated for those youths.