Web Technology Experts Notes

Sunday, 8 December 2019

Difference between channel and playlist on youtube

A channel is your identity on YouTube, like your name, where your upload videos.
OR
A channel is the home page for an your youtube account.

Question: What details are available on Channel page?
--- Basic information like Your Name, Account type etc.
--- Your public videos which you have uploaded.
--- Listing of playlist.

Question: What we can do on Channel page?
--- Update your information. --- upload videos.
--- customize the color theme of your channel.
--- Others can subscribe your channel.

Question: Sample of Youtbe Channel?
https://www.youtube.com/channel/UCFPS0qKgr-GbSRAppOkdpUA

Question: What is playlist?
A playlist is a collection of videos you may saved.

Question: List of Playlist (After Login on youtube.com with your gmail.com account)
https://www.youtube.com/view_all_playlists

Create a New Playlist (After Login on youtube)
https://www.youtube.com/view_all_playlists
Click on "New Playlist", an popup will prompt, just add the your playlist name

Question: How to add videos in playlist?
Go to playlist page (Like https://www.youtube.com/playlist?list=PLREKFLRZTg5xJJHmLiKZ0VBTKpubGXksb).
Click on "Add Videos" (Middle Right side).
An Popup will prompt.
Just add the YouTube video URL (Any video which you like) and follow Steps.

Question: What you can do with your playlist?
--- Make the playlist as public/private.
--- Add notes to each videos.
--- Re-ordering the videos.
--- AutoPlay on/off for videos.
--- Share your playlist on Fb.
--- Embed your playlist videos in your website/blog.

Question: Need Playlist Sample URL
https://www.youtube.com/playlist?list=PLREKFLRZTg5xJJHmLiKZ0VBTKpubGXksb

Question: Can we earn money with playlist?
No, You can't earn money on other's video (Uploaded by other).
You can earn money with your own videos (uploaded by you)

Saturday, 7 December 2019

How to Validate email address in PHP?

Following are in built PHP function to validate the email address and Ip Address.

Validate Email - Example 1

$email='helo@gmail.com';
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
  echo $email. ' - Invalid'; 
}else{
echo $email. ' - Valid';     
}

helo@gmail.com - Valid

Validate Email - Example 2

$email='464646@gmail.com';
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
  echo $email. '- Invalid'; 
}else{
echo $email. ' - Valid';     
}

464646@gmail.com - Valid

Validate Email - Example 3

$email='arunkumar.com';
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
  echo $email. ' - Invalid'; 
}else{
echo $email. ' - Valid';     
}

arunkumar.com - Invalid

Validate IP Address - Example 1
Question: How to Validate IP Address?

$ipAddress = '127.0.0.1';
if (!filter_var($ipAddress, FILTER_VALIDATE_IP)) {
    echo "$ipAddress is In-valid.";
}else{
    echo "$ipAddress is Valid.";
}

127.0.0.1 is Valid

Validate IP Address - Example 2

$ipAddress = '127.test.0.0.1';
if (!filter_var($ipAddress, FILTER_VALIDATE_IP)) {
    echo "$ipAddress is In-valid.";
}else{
    echo "$ipAddress is In-Valid.";
}

127.test.0.0.1 is Valid

Validate URL - Example 1

$ipAddress = '127.test.0.0.1';
$website = 'https://www.web-technology-experts-notes.in';
if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$website)) {
  echo   "Invalid URL";
}else{
echo   "Valid URL";
}

Valid URL