An example PHP MySQL script (with a SQL 'SELECT' query)

As a quick note to self, here is some source code for a simple example PHP script that runs a SQL SELECT query against a MySQL database:


  $servername = "localhost";
  $username = "d8_user";
  $password = "d8_pass";
  $dbname = "aa_d8";

  # connect to the database
  $conn = new mysqli($servername, $username, $password, $dbname);
  if ($conn->connect_error) {
      die("Connection failed: " . $conn->connect_error);

  # execute a query and output its results
  $sql = "SELECT * FROM node__field_photo";
  $result = $conn->query($sql);
  if ($result->num_rows > 0) {
      // output data of each row
      while($row = $result->fetch_assoc()) {
          echo "bundle: " . $row["bundle"]. ", " . $row["entity_id"]. ", " . $row["field_photo_target_id"]. "\n";
  } else {
      echo "0 results";


Sorry, I’m not going to offer any explanation about that, other than to say that the SELECT query is intended to run against a Drupal database table. Other than that, I assume that you know PHP and MySQL, and just need a little starter script to get going. This script works as of PHP 5.6.* running under MAMP on May 6, 2016, and it’s based on the script at the URL I’ve linked to.

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