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Perform Arithmetic On MySQL Numeric Values (hit counter example)
We can perform basic arithmetic on numeric values in our MySQL database directly inside of your SQL syntax. In the following code example we are showing a hit counter example in which each time a dynamic page loads you could run a simple query like this to increment a number for a "View Counter" situation. You are not limited to addition in the query, that is just the example I chose to demonstrate this code.

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// include your MySQL database connection script here 
require_once "connect_to_mysql.php"
// Build sql command 
$sqlCommand "UPDATE myTable SET views=(views + 1) WHERE id='$this_page_id'";  
// Execute the query here now to add one to the page view count  
$query mysql_query($sqlCommand) or die (mysql_error());  

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CSS Level 3 Properties is a growing educational system packed with video and written material that you can access 24/7 100% free. The focus here in 2014 is spread between five technologies: HTML, CSS, JavaScript, PHP and MySQL. Learn programming theory, database interaction, web design, animation, graphics editing, vector art, 3D modeling, and much more. The educational experience here is a hybrid one offering both high quality video tutorials and code libraries that grow more robust every day. The code libraries are being assembled so that developers can discover all of the building blocks of their favorite languages. The libraries coupled with high quality video tutorials will take you deep down the rabbit hole very quickly. You can also ask questions and get free advice at