MySql replace NULL values with empty string without effecting Rowset

Question: What is NULL Value in MySQL?
NULL values means don't have any value. It is neither empty NOR it have any value.


Question: Give an Example which is give NULL Values in Query?
NULL values means don't have any value. It is neither empty NOR it have any values.

SELECT u.id, u.first_name,u.last_name,b.address1 FROM `users` as u LEFT JOIN billings as b on b.user_id=u.id order by u.id desc limit 5;

See Screenshot below:

Question: How we can replace the null value with empty string?
We can use mysql IFNULL function to replace the null values with empty string. See Example:

SELECT IFNULL(null,"") as value 

Question: Give an Example to replace the NULL with empty string in mysql query?
We can use mysql IFNULL function to replace the null values with empty string. See Example:

SELECT u.id, u.first_name,u.last_name,IFNULL(b.address1,"") AS address1 FROM `users` as u LEFT JOIN billings as b on b.user_id=u.id  order by u.id desc limit 5; 

See Screenhot below:

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How to redirect http to https in Zend Framework

http to https, Follow the following:

1. Open htaccess file in /public OR /public_html.
2. Add following code in your .htaccess at top

   RewriteEngine On
   RewriteCond %{HTTPS} off
   RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]

3. Save the File .
4. Refresh the webpage, you will see same page is opened with https.

If you are getting infinite loop, then it means you are using CloudFlare or a similar CDN. Now instead of above code, use below one.

RewriteEngine On
RewriteCond %{HTTP:X-Forwarded-Proto} =http
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

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