combo dropdown list does not affect result

[tony_p]

I have this code below that creates a combo dropdown list that the user can use to select how many images ($MAXEMLEMENTSPERPAGE) I have set caption to be 1 the problem is I can't figure out how to get the combo box to change the value of the user selected item to show that the  number of images the user wants I am using $xml = simplexml_load_file ("xml/images.xml"); to load the image elements and then $maxpage to paginate the images if I change $cation to 5 then it displays 5 images per page the problem I have is at the moment I haven't found a way of passing the selected value to $caption to refresh the any help would be appriciated

<select name="mydropdownlist">
	<?php
	$caption = 1;	                  
	
	$options = array('2' => '2',
							 '3' => '3',
							 '4' => '4');

			foreach($options as $value => $caption)
	   { 
				if(isset($_GET['caption']))
		{
			$caption = $_GET['caption'];   //if page is specif
		}
					echo "<option value=\"$value\" selected=\"$value\">$caption</option>";
					
	   }
	?>
 </select>
<?php
	$page = 0;
	$MAXELEMENTSPERPAGE = $caption; //change this value to display how many elements per page you wish people to see
	$maxPage = count($xml)/$MAXELEMENTSPERPAGE;

	if(isset($_GET['page']))
	{
		$page = $_GET['page'];   //if page is specif
	}

	?> <?php
	for($i =$page * $MAXELEMENTSPERPAGE ; $i< ($page * $MAXELEMENTSPERPAGE ) +$MAXELEMENTSPERPAGE ; $i++)
					{
						//start the foreach loop
						$imageProp = $i;

						if($i >= count($xml))
						{
							break;
						}
 ?>
 Page:
<?php
if($page > 0){
	?>
	<a href=<?php echo $_SERVER["PHP_SELF"]."?page=".($page-1); ?>>Previous </a>
	<?php
}

for($i = 0; $i< $maxPage; $i++ ){
	//here we are making a loop for how many pages we have
	//we then spawn a hyperlink for each page
	//$Server["php_self"]  returns the current page url
	//then we append the page number to it

	?>

	<a href=<?php echo $_SERVER["PHP_SELF"]."?page=".$i; ?>><?php echo $i;?></a>
	<?php
}
?>
<?php
if($page < floor($maxPage)){
	?>

	<a href=<?php echo $_SERVER["PHP_SELF"]."?page=".($page+1); ?>> Next </a>
	<?php
}
?>

 

page with its new value

Edited March 12, 2013 by tony_p

[akphidelt2007]

Try something like this...

 

 

    $caption = isset($_GET['caption'])  ? $_GET['caption'] : 1;    
    
    $options = array('2' => '2',
                             '3' => '3',
                             '4' => '4');

            foreach($options as $value => $text)
     {
                    $selected = $caption==$text ? ' selected' : '';
                    echo "<option value='$value'$selected>$text</option>";
                    
     }

 

This is basically a shorthand method to simply create the $caption variable with out having to manipulate it so much through your foreach statement.

[tony_p]

I have tried several approaches but I seem to be missing some code as nothing I do changes the result when the user changes the value of the combo box the the number of elements shown per page stays the same or should I say the page does not get updated

Edited March 13, 2013 by tony_p