Send Drupal 7 Password Reset Email

send_drupal_pw_reset.php

<?php

// Array of user IDs to email.
$uids = array('1');

// Loop through array of uids and attempt to send password reset emails.
foreach ($uids as $uid) {
  // Load a user.
  $account = user_load($uid);
  // Invoke the email. It will be queued along with other system mail to be sent during cron
  _user_mail_notify('password_reset', $account);
}