SQL Insert executes twice, php

Question

Couldn\'t find a straight answer to this. My custom wordpress php code seems to be executed twice when I click on the submit once. When clicked, the codes adds two cities wi

Answer 1

you execute the query twice:

$result = $db->query($query);
if ($db->query($query) === TRUE) {

should be:

$result = $db->query($query);
if ($result === TRUE) {