Online PHP editor | refs for IAvCF

@ 2015-11-05T01:09:29Z

<?php
echo "0 : ";
if (filter_var('0', FILTER_VALIDATE_INT))
{
    echo "OK\n";
}
else
{
    echo "Not OK\n";
}

echo "1 : ";
if (filter_var('1', FILTER_VALIDATE_INT))
{
    echo "OK\n";
}
else
{
    echo "Not OK\n";
}