form fields not retaining data on post

[fife]

Ok from one brick wall to the next. After lots of help with my last query I moved onto the next task an I'm completely stuck again.

 

I have a form thats created with a loop.  Here is that form

 

<form action="" method="post" id="">
        <?php 
 for ($i = 1; $i <= $totalRows_rs_cacheNum; $i++) {
    echo "<label>Cache ".$i."</label>
       	  <span id='sprytextfield".$i."'>
        	<input name='cache[$i]' type='text' value='".$_POST['cache[$i]']."'/>
        	<span class='textfieldRequiredMsg'>Required!</span></span>
        	<div class='clear'></div>";
}
?>
<input name="nextbtn" type="submit" value="Next" />

 

When a user enters data in all the fields, If one piece of information is incorrect an error pops up saying one of the fields you entered does not match the fields in the database. At the same time however i wish to keep the data they have entered in each of the fields.

 

Normally you'd just write

 

value="<?php echo $_POST['fieldName'];?>"

 

but for some reason in this case it does not work. can someone point me in the right direction.  I've tried Google many different terms but I can not find the correct term to find my answer.  Hence me asking you guys again.

 

Thanks

[PFMaBiSmAd]

The actual syntax would be -

 

$_POST['cache'][$i]

[fife]

thanks again PFMaBiSmAd