$tmp_dat = $row[3];

if (!showdate) {
echo "<b> $row[3] </b><p><p>";
$showdate = $row[3];
}


if ($tmp_dat == $showdate){

} else {
echo "<b> $row[3] </b><p><p>";
$showdate = $tmp_dat;
}


ERROR
Notice: Use of undefined constant showdate - assumed 'showdate' in /home/footyonlin/domains/footyonline.tv/public_html/test.php on line 148