checkbox yardım

echo '<form action="ekle.php" method="post">';

for($i=0; $i<=31; $i++)
{

echo '<input type="checkbox" name="check">
 <input type="hidden" name="resim" value="'.$img[$i].'">
<br>
<input type="text" name="url" value="'.$url[$i].'">
<hr>';


}


echo '<input type="submit" value="Ekle"></form>'

echo '<form action="ekle.php" method="post">';
	if ($_POST) {
		
		foreach ($_POST as $i=>$j) {
		
			if (eregi('check-',$i) AND $j=='t') {
			$i = str_replace('check-','',$i);
			echo $i.' isaretli<br />';
			}
		}
		
	}
	
for($i=0; $i<=31; $i++)
{

echo '<input type="checkbox" name="check-'.$i.'" value="t">
 <input type="hidden" name="resim" value="'.$img[$i].'">
<br>
<input type="text" name="url" value="'.$url[$i].'">
<hr>';


}


echo '<input type="submit" value="Ekle"></form>'