I'm using the following code to make a connection to the database, fetch the Data_length index column, and calculate the database size based on the data.
For some reason PDO will always return "0", which is the value for the Data_length index in the first row. Whatever I do, I only get the first rows index.
The database is MySQL, the engine MyISAM.
PHP Version: 5.5.38
MySQL Version: 5.5.50
Here is the source code.
<!DOCTYPE html>
<head>
<title></title>
</head>
<body>
<?php
try {
error_reporting(-1);
$host_name = "my_host";
$database = "my_db";
$user_name = "my_user";
$password = "my_pwd";
$conn = new PDO("mysql:host=$host_name;dbname=$database", $user_name, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sth = $conn->query('SHOW TABLE STATUS');
$dbSize = 0;
$row = $sth->fetch(PDO::FETCH_ASSOC);
$dbSize = $row["Data_length"];
$decimals = 2;
$mbytes = round($dbSize/(1024*1024),$decimals);
echo $dbSize . "
" . $row["Data_length"];
} catch (PDOException $e) {
echo 'Connection failed: ' . $e->getMessage();
}
?>
</body>
</html>
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