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passing multidimensional array onto a hidden field woes


ukweb

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Hi all

 

Basically, I have a form which when done will calculate a quote for turf for given areas. Basically each time the user specifies an area it goes into an array, and they can add as many as they want, but the problem seems to be once submitted and it arrives back into the program, it isn't decoding so the multidimensional array is lost. What am I doing wrong here?

 

Full code below, thanks in advance

 

Ste

<?php // Framework

// Get the sections
$sections_array = base64_decode(unserialize($_POST['sections']));

// Build the rest of the array
foreach ($sections_array as $section) {

$sections[] = base64_decode(unserialize($section));
}

// Set the initial unit
$units = $_POST['units'];

// Do the new add
if ($_POST['a'] == 'add_section') {

// Add the new measure
if ((is_numeric($_POST['width'])) && (is_numeric($_POST['length']))) {

	$sections[] = array('length' => $_POST['length'],
					    'width' => $_POST['width']);
}
}

// Build the output
foreach ($sections as $section) {

$output .= '<strong>'.$section['width'].' wide</strong> x <strong>'.$section['length'].' long</strong><br />';
$sections_array = base64_encode(serialize($section));
}


?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<style type="text/css">
body,td,th {
font-family: Verdana, Geneva, sans-serif;
font-size: 11px;
}
body {
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
}
.wrap {
text-align: center;
height: 350px;
width: 410px;
padding: 0 10px;
}
</style>
</head>

<body>
<div class="wrap">
  <h2>Turf Calculator</h2>
  <p>To begin, enter the width and length of the first area of garden you wish to turf. You can keep adding sections to work out the final quantity required.</p>
  <p><?php echo $output; ?></p>
  <form id="form1" name="form1" method="post" action="">
    <table width="0" border="0" cellspacing="0" cellpadding="2">
      <tr>
        <td>Length:</td>
        <td><input type="text" name="length" id="length" /></td>
      </tr>
      <tr>
        <td>Width:</td>
        <td><input type="text" name="width" id="width" /></td>
      </tr>
      <?php if ($units == '') { ?>
      <tr>
        <td>Units:</td>
        <td><select name="units" id="units">
          <option value="feet">Feet</option>
          <option value="m" selected="selected">Metres</option>
          <option value="yards">Yards</option>
        </select></td>
      </tr>
      <?php } ?>
    </table>
    <p>
      <input type="submit" name="add" id="add" value="Add This Section" />
      <input name="a" type="hidden" id="a" value="add_section" />
      <input name="sections" type="hidden" id="sections" value="<?php echo base64_encode(serialize($sections_array)); ?>" />
      <?php if ($units != '') { ?>
      <input name="units" type="hidden" id="units" value="<?php echo $units; ?>" />
      <?php } ?>
    </p>
  </form>
  <p> </p>
</div>
</body>
</html>

 

This line:

 

$sections_array = base64_encode(serialize($section));

 

should probably be

 

$sections_array[] = base64_encode(serialize($section));

 

Give that a go.  It would be simpler if you used sessions though, I think.

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