<?php

$formCEP = "15047200";
$formCEP = preg_replace("/[^0-9]/", "", $formCEP);

echo 'http://v...content-available-to-author-only...m.br/ws/$formCEP/json/';
echo "\n";
echo "http://v...content-available-to-author-only...m.br/ws/$formCEP/json/";