$_SESSION array.

[LongWei]

Hi all,

i am trying to do a img search application using PHP and mysql. Basically it goes like this, on the index.php a user will key in some keywords to search and it will return results on the image search

Then i will try store the array of results in a $_SESSION.

index.php

$_SESSION['imgfile'] = array();

			do { ?>
              <li><img src="img/<?php echo $row_rstImages['image_filename']; ?>" alt="<?php echo $row_rstImages['image_title']; ?>" name="search" width="200" height="150" id="search
			  <?php echo $row_rstImages['image_id']; ?>" /img>
              <br /><a class="<?php echo $row_rstImages['image_title']; ?>" href="displayactual.php" /a> 
			  <?php echo $row_rstImages['image_title']; ?>
              <?php $_SESSION['imgfile'][]=$row_rstImages['image_filename']; echo $row_rstImages['image_filename']; var_dump($_SESSION['imgfile']); ?> </li>
              <?php } while ($row_rstImages = mysql_fetch_assoc($rstImages)); }

display_results .php

<?php echo '<img src="img/'.$imgfile.'" width="200" height="150">'; var_dump($_SESSION['imgfile']); ?> </p>

is that the correct way to do it?

[Atli]

Hey.

No. That's not the correct way to do it.

Typically you don't need sessions for stuff like this. You just put a HTML form on your index page, have it submit to the search page, where the results are displayed.

For example:
[code=php]<!--
- index.html
-->
<form action="search. php" method="post">
<input type="text" name="keyword">
<input type="submit" value="Search">
</form>[/code]
[code=php]<?php
/*
* search.php
*/

$keyword = mysql_real_esca pe_string($_POS T['keyword']);

$sql = "SELECT `id`, `title` FROM `stuff` WHERE `text` LIKE '%{$keyword}%'" ;
$result = mysql_query($sq l) or die(mysql_error ());

while($row = mysql_fetch_ass oc($result)) {
echo "<a href=\"show_det ails.php?id={$r ow['id']}\">{$row['title']}</a><br>";
}
?>
[/code]
This is obviously not an image search, but you get the point.

A few things to consider:

• During the first iteration of a do ... while loop, the variables inside the loop are set as they were before the loop. That is: the statement in the while condition is not executed until after the first iteration. So if you are planing to go through the result set of a mysql_query, you are going to want to use a normal while loop.
• Your HTML is all messed up.
  [code=html]
  // These are wrong:
  <img src="" /img>
  <a href="" /a>Linkage
  
  // This is right for normal HTML
  <img src="">
  <a href="">Linkage </a>
  
  // For XHTML, self-closing tags must be like:
  <img src="" />
  [/code]
• The var_dump function exists almost solely for debugging purposes. You aren't going to want to use it in any real output.