Select random value from MySQL database table.

The simplest way of selecting random rows from the MySQL database is to use “ORDER BY RAND()” clause in the query.
Solution 1 [SQL QUERY]
SELECT * FROM `table` ORDER BY RAND() LIMIT 0,4;
This query select 4 random value every refresh?
The problem with this method is that it is very slow. The reason for it being so [...]

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Read & Return Data From Files Into PHP

Reading File Data
If you have written data to a file from PHP, or you have a file on your server you need to read with PHP, there are quite a few ways you can do it. The four ways we will cover here are fread (), fgets (), file (), and file_get_contents(). The one you [...]

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