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feat:php program to fill pvc and report database usage

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Willem 2025-05-02 12:03:18 -04:00
parent 90b80b24bc
commit a7ba9be486
1 changed files with 83 additions and 1 deletions
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84
examples/lamp/php/index.php
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@ -1,3 +1,85 @@
<?php <?php
print_r("Hello this is from PHP")
ini_set('display_errors', 1);
error_reporting(E_ALL);
$host = getenv('MYSQL_HOST') ?: '';
$user = getenv('MYSQL_USER') ?: 'root';
$pass = getenv('MYSQL_PASSWORD') ?: '';
$db = 'testfill';
$charset = 'utf8mb4';
$dsn = "mysql:host=$host;charset=$charset";
$options = [
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
];
try {
$pdo = new PDO($dsn, $user, $pass, $options);
$pdo->exec("CREATE DATABASE IF NOT EXISTS `$db`");
$pdo->exec("USE `$db`");
$pdo->exec("
CREATE TABLE IF NOT EXISTS filler (
id INT AUTO_INCREMENT PRIMARY KEY,
data LONGBLOB
)
");
} catch (\PDOException $e) {
die("❌ DB connection failed: " . $e->getMessage());
}
function getDbStats($pdo, $db) {
$stmt = $pdo->query("
SELECT
ROUND(SUM(data_length + index_length) / 1024 / 1024 / 1024, 2) AS total_size_gb,
SUM(table_rows) AS total_rows
FROM information_schema.tables
WHERE table_schema = '$db'
");
$result = $stmt->fetch();
$sizeGb = $result['total_size_gb'] ?? '0';
$rows = $result['total_rows'] ?? '0';
$avgMb = ($rows > 0) ? round(($sizeGb * 1024) / $rows, 2) : 0;
return [$sizeGb, $rows, $avgMb];
}
list($dbSize, $rowCount, $avgRowMb) = getDbStats($pdo, $db);
$message = '';
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['fill'])) {
$iterations = 1024;
$data = str_repeat(random_bytes(1024), 1024); // 1MB
$stmt = $pdo->prepare("INSERT INTO filler (data) VALUES (:data)");
for ($i = 0; $i < $iterations; $i++) {
$stmt->execute([':data' => $data]);
}
list($dbSize, $rowCount, $avgRowMb) = getDbStats($pdo, $db);
$message = "<p style='color: green;'>✅ 1GB inserted into MariaDB successfully.</p>";
}
?> ?>
<!DOCTYPE html>
<html>
<head>
<title>MariaDB Filler</title>
</head>
<body>
<h1>MariaDB Storage Filler</h1>
<?= $message ?>
<ul>
<li><strong>📦 MariaDB Used Size:</strong> <?= $dbSize ?> GB</li>
<li><strong>📊 Total Rows:</strong> <?= $rowCount ?></li>
<li><strong>📐 Average Row Size:</strong> <?= $avgRowMb ?> MB</li>
</ul>
<form method="post">
<button name="fill" value="1" type="submit">Insert 1GB into DB</button>
</form>
</body>
</html>