Is this possible ?

ttmt · January 27, 2009

I've posted before about this, but no luck and it's driving me mad.

I have a while loop that is generating a series of checkboxes the results from them are captured in

name = "section[]".

This loop is called from within a for loop so the series of checkboxes are repeated a number of times down the page, the results from all of them are captures in section[].

Is it possible to create a separate array for each group of checkboxes - within the while loop a different array would be used to capture the information for that series of checkboxes

Something like

name="section['.$row[0].']"

I've tried this but couldn't access it with php $_POST['section'][1]?

<?php
  require_once("includes/connection.php");
  require_once("includes/functions.php");
  include("includes/header.php");
?>
<?php
$query = "SELECT key_id, words FROM keywords";
$result = mysql_query($query);
confirm_query($result);
$options = "";
while($row = mysql_fetch_array($result)){
	$options .= $row[1] . ':<input type="checkbox" value="'.$row[0].'" name="section[]]" />';    
}
$number_of_uploads = 3;
?>

<body>
<div id="con">
	<form name="upload_form" action="upload.php" method="post" enctype="multipart/form-data">
		<?php
			for($counter = 1;$counter<=$number_of_uploads;$counter++){
		?>
		<p>
			<b>Image:</b>
			<textarea name="title[]" cols="30" rows="1"></textarea>
		</p>
		<p>
			<b>Sections:</b>
				<?php echo $options ;?>
		</p>
		<?php
			}
		?>
		<br/>
		<p>
			<input type="submit" name="submit" value="Add Photos" />
		</p>
	</form>
</div>
</body>
</html>

If I was to hard code it with html it would look like this.

<body>
<div id="con">
	<form name="upload_form" action="upload.php" method="post" enctype="multipart/form-data">
		<p>
			<b>Image:</b>
			<textarea name="title[]" cols="30" rows="1"></textarea>
		</p>
		<p>
			<b>Sections:</b>
			Type: <input type="checkbox" value="1" name="section[]" />
			Color: <input type="checkbox" value="2" name="section[]" />
			People: <input type="checkbox" value="3" name="section[]" />
			Places: <input type="checkbox" value="4" name="section[]" />
			Buildings: <input type="checkbox" value="5" name="section[]" />	
		</p>
		<p>
			<b>Image:</b>
			<textarea name="title[]" cols="30" rows="1"></textarea>
		</p>
		<p>
			<b>Sections:</b>
			Type: <input type="checkbox" value="1" name="section1[]" />
			Color: <input type="checkbox" value="2" name="section1[]" />
			People: <input type="checkbox" value="3" name="section1[]" />
			Places: <input type="checkbox" value="4" name="section1[]" />
			Buildings: <input type="checkbox" value="5" name="section1[]" />	
		</p>
		<p>
			<b>Image:</b>
			<textarea name="title[]" cols="30" rows="1"></textarea>
		</p>
		<p>
			<b>Sections:</b>
			Type: <input type="checkbox" value="1" name="section2[]" />
			Color: <input type="checkbox" value="2" name="section2[]" />
			People: <input type="checkbox" value="3" name="section2[]" />
			Places: <input type="checkbox" value="4" name="section2[]" />
			Buildings: <input type="checkbox" value="5" name="section2[]" />	
		</p>
		<br/>
		<p>
			<input type="submit" name="submit" value="Add Photos" />
		</p>
	</form>
</div>
</body>
</html>

Each group of checkboxes has a different name="section[]", so I could then access that array with

<?php
echo "<pre>";
	print_r($_POST['section']);
	print_r($_POST['section1']);
	print_r($_POST['section2']);
echo "</pre>";
?>

Hope this makes sense and someone can help.

soak · January 27, 2009

I think youi're nearly there. How about something like this:

It's not the prettiest code but it should do what you need.

<?php                                                                                        
  require_once("includes/connection.php");                                                   
  require_once("includes/functions.php");                                                    
  include("includes/header.php");                                                            
                                                                                             
$query = "SELECT key_id, words FROM keywords";                                               

$result = mysql_query($query);                                                               

confirm_query($result);                                                                      

$options = array();

$number_of_uploads = 3;

// Initialise your options strings
for ($i = 1; $i <= $number_of_uploads; $i++) {
    $options[$i] = '';    
}

// build the checkboxes
while($row = mysql_fetch_array($result)){                                                    
    for ($i = 1; $i <= $number_of_uploads; $i++) {
        $options[$i] .= $row[1] . ':<input type="checkbox" value="'.$row[0].'" name="section'.$i.'[]]" />';    
    }
}

// now echo the form to the screen
for ($i = 1; $i <= $number_of_uploads; $i++) {

?>
<p>
    <b>Image:</b>
    <textarea name="title<?= $i ?>" cols="30" rows="1"></textarea>
</p>
<p>
    <b>Sections:</b>
    <?php echo $options[$i] ;?>
</p>                                                                                             

<?php	                                                                                         
}

You can recover the data from the form using:

<?php
$sections = array();
$titles = array();

for ($i = 1; $i <= $number_of_uploads; $i++) {
    $sections[$i] = $_POST['section'.$i];
    $titles[$i] = $_POST['title'.$i];
}

I hope that all makes sense!

--

A digital agency

ttmt · January 27, 2009

I've been looking at this for 1 day now and just realized what I was doing wrong before I saw your post.

Your code covers it perfect - thanks for your help.

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