Get the size of a MySQL database with PHP
This simple tutorial will show you how to get the size of a MySQL database using PHP in just a few simple steps.
First of you’ll need my formatfilesize() function; for this script to work you will obviously need to connect to your MySQL database. Then add this line of code but replace “databasename” with the name of your database:
Set the database name
<?php
$dbname = “databasename”;
?>
Now comes the fundamental part of the tutorial: computing the database size. It’s actually very simple – all we need to do is to go through each table in the database and add up the length of the data and the index:
Add up the index and data for each table
<?php
mysql_select_db( $dbname );$result = mysql_query( “SHOW TABLE STATUS” );$dbsize = 0;
while( $row = mysql_fetch_array( $result ) ) {
$dbsize += $row[ "Data_length" ] + $row[ "Index_length" ];
}
?>
We now have the size of the databse in bytes sotred in the $dbsize variable. Now we just output it to a more user-friendly format using my formatfilesize() function:
Output the database size
<?php
echo “<p>The size of the database is ” . formatfilesize( $dbsize ) . “</p>”;
?>
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