Sometimes the data source you read your query from will need to be read in a reversed order. Each MySQL query is a simple string of data in PHP and can be reversed using standard PHP functions. Once a backwards data string has been reversed it can be fed directly into a MySQL database as a query.
Open your PHP file in your preferred text or PHP editor.
Scroll down to the part of your code where your query is obtained or defined, but before it is sent to the database using the mysql_query function
Type the "strrev" command function before the query text. For example, if your query is stored in the variable you would type "$query_1" type:$query_1 = strrev($query_1);
Save your document. When PHP runs the file, your query string will be sent to the database in reverse order.