PHP-SQL-DB-check/check db connection at main · nukleerb/PHP-SQL-DB-check · GitHub

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<?php

// 1. Create a database connection
$db = mysqli_connect("127.0.0.1", "barisdb", "barisdb", "barisb", 1016);

// Test if connection succeeded (recommended)
if(mysqli_connect_errno()) {
  $msg = "Database connection failed: ";
  $msg .= mysqli_connect_error();
  $msg .= " (" . mysqli_connect_errno() . ")";
  exit($msg);
}

// 2. Perform database query
$sql = "SELECT * FROM tasks LIMIT 1";
$result = mysqli_query($db, $sql);

// Test if query succeeded (recommended)
if (!$result) {
	exit("Database query failed.");
}

// 3. Use returned data (if any)
$task = mysqli_fetch_assoc($result);

?>

<!doctype html>
<html lang="en">
  <head>
    <title>Task Manager: Show Task</title>
  </head>
  <body>

    <header>
      <h1>Task Manager</h1>
    </header>

    <section>

      <h1>Show Task</h1>

      <dl>
        <dt>ID</dt>
        <dd><?php echo $task['id']; ?></dd>
      </dl>
      <dl>
        <dt>Priority</dt>
        <dd><?php echo $task['priority']; ?></dd>
      </dl>
      <dl>
        <dt>Completed</dt>
        <dd><?php echo $task['completed'] == 1 ? 'true' : 'false'; ?></dd>
      </dl>
      <dl>
        <dt>Description</dt>
        <dd><?php echo $task['description']; ?></dd>
      </dl>

    </section>

  </body>
</html>

<?php
// 4. Release returned data
mysqli_free_result($result);

// 5. Close database connection
mysqli_close($db);
?>