<?php
$_GET['birthdate'] = "2015-02-07";
echo "INSERT INTO tabela (birthday) VALUES ($date)";
PD9waHAKCiRfR0VUWydiaXJ0aGRhdGUnXSA9ICIyMDE1LTAyLTA3IjsKJGRhdGUgPSBkYXRlKCJZLW0tZCIsIHN0cnRvdGltZSgkX0dFVFsnYmlydGhkYXRlJ10pKTsKZWNobyAiSU5TRVJUIElOVE8gdGFiZWxhIChiaXJ0aGRheSkgVkFMVUVTICgkZGF0ZSkiOw==