ช่วยดูหน่อยครับ ทำใมถึงตรวจสอบเงือนใขไม่ได้ครับ ช่วยดูหน่อยครับ ผมจะเปรียบเทียบ วัน และเวลา นะครับ

<?php
$single = dbquery("SELECT * FROM step_sing");
$singletime = mysql_fetch_array($single);
$timesingle = $singletime['sing_timeplay']; // สมมุติว่า $timesingle คือ 19-03-09  21:00
$daytoday = date("d-m-y H:i");  // เวลาปกติครับ

echo "<center>".$timesingle."</center>";
echo "<center>".$daytoday."</center>";

echo "<form name='singleform' method='post' action='".FUSION_SELF."?single=singlepal_ok'>\n";
echo "<table border='1' cellpadding='0' cellspacing='1' class='center'>\n<tr>\n";
echo "<td align='center' colspan='7' bgcolor='#00CCFF'>".strftime("%d %B %Y")."\n</td>\n";
echo "</tr>\n<tr>\n";
echo "<td align='center' width='100'>".$locale['global_822']."</td>";
echo "<td align='center' width='200'>".$locale['global_823']."</td>";
echo "<td align='center' width='70'>".$locale['global_824']."</td>";
echo "<td align='center' width='200'>".$locale['global_825']."</td>";
echo "<td align='center' width='50'>".$locale['global_826']."</td>";
echo "<td align='center' width='150'>".$locale['global_827']."</td>";
echo "</tr><tr>";
while ($single = mysql_fetch_array($sing)){
	
	echo "<td align='center' width='100'>".$single['sing_timeplay']."</td>";
	echo "<td align='center' width='200'>";
	if ($timesingle < $daytoday){  //ตรงนี้ครับผมต้องทำเงือนใขยังใงครับช่วยที
		echo "<input type='radio' name='checkhome' value='".$single['sing_num1']."'>".$single['sing_num1']."<br>".$single['sing_team1']."";
	}else{
		echo "<input type='radio' disabled>".$single['sing_num1']."<br>".$single['sing_team1']."";
	}
	echo "</td>";
?>