string replace

BluntedbyNature

im making a blogsystem. and i want so you can show smilies when you put like on this message board. i am useing the string replace function, like this :

<? $row_m['blog'] = str_replace(":)", "<img src='images/smile.gif'>", $row_m['blog']); ?>

i have like 10 of those for smilies and one for /n that turns it into a <br> but anyway. everytime i post and i use those it works fine on the current post, but every post before it loses the smiles and it goes to text... how come?

ereptur

perhaps you can post a little more of the code. The part you have here looks fine.

BluntedbyNature

ok here is the whole source to the page.

<?php require_once('Connections/conn.php'); ?>
<?php
$currentPage = $HTTP_SERVER_VARS["PHP_SELF"];

$maxRows_m = 5;
$pageNum_m = 0;
if (isset($HTTP_GET_VARS['pageNum_m'])) {
  $pageNum_m = $HTTP_GET_VARS['pageNum_m'];
}
$startRow_m = $pageNum_m * $maxRows_m;

mysql_select_db($database_conn, $conn);
$query_m = "SELECT * FROM blog ORDER BY id DESC";
$query_limit_m = sprintf("%s LIMIT %d, %d", $query_m, $startRow_m, $maxRows_m);
$m = mysql_query($query_limit_m, $conn) or die(mysql_error());
$row_m = mysql_fetch_assoc($m);

if (isset($HTTP_GET_VARS['totalRows_m'])) {
  $totalRows_m = $HTTP_GET_VARS['totalRows_m'];
} else {
  $all_m = mysql_query($query_m);
  $totalRows_m = mysql_num_rows($all_m);
}
$totalPages_m = ceil($totalRows_m/$maxRows_m)-1;

$queryString_m = "";
if (!empty($HTTP_SERVER_VARS['QUERY_STRING'])) {
  $params = explode("&", $HTTP_SERVER_VARS['QUERY_STRING']);
  $newParams = array();
  foreach ($params as $param) {
    if (stristr($param, "pageNum_m") == false && 
        stristr($param, "totalRows_m") == false) {
      array_push($newParams, $param);
    }
  }
  if (count($newParams) != 0) {
    $queryString_m = "&" . implode("&", $newParams);
  }
}
$queryString_m = sprintf("&totalRows_m=%d%s", $totalRows_m, $queryString_m);
?>
<?php echo "<?xml version=\"1.0\" encoding=\"iso-8859-1\"?".">"; ?>
<!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>
<title>News...</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />

<link href="styles.css" rel="stylesheet" type="text/css" />
</head>

<body>
<? $row_m['blog'] = str_replace("\n", "<br>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":)", "<img src='images/smile.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":D", "<img src='images/grin.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":wub:", "<img src='images/wub.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace("^_^", "<img src='images/happy.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":blink:", "<img src='images/blink.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":blush:", "<img src='images/blush.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":crazy:", "<img src='images/crazy.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":cry:", "<img src='images/cry2.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":hehe:", "<img src='images/hehe.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":huh:", "<img src='images/huh.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":haha:", "<img src='images/laugh.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":zZz:", "<img src='images/sleeping.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":sleepy:", "<img src='images/sleepy.gif'>", $row_m['blog']); ?>
<? $row_m['blog'] = str_replace(":P", "<img src='images/tongue.gif'>", $row_m['blog']); ?>

<table width="100%" border="0" cellspacing="1" cellpadding="0">
  <tr>
    <td valign="top"><div align="right">
        <?php do { ?>
        <table width="100%" border="0" cellspacing="1" cellpadding="0">
          <tr> 
            <td colspan="2" class="top"><?php echo $row_m['title']; ?></td>
          </tr>
          <tr> 
            <td colspan="2" class="main"><?php echo $row_m['blog']; ?></td>
          </tr>
          <tr> 
            <td width="84%" class="bottom">&nbsp;</td>
            <td width="16%" class="bottom"><div align="center"><?php echo $row_m['date']; ?></div></td>
          </tr>
        </table>
        <br />
        <?php } while ($row_m = mysql_fetch_assoc($m)); ?>
        <p class="pages">&nbsp;<a href="<?php printf("%s?pageNum_m=%d%s", $currentPage, max(0, $pageNum_m - 1), $queryString_m); ?>">Previous</a> 
          | <a href="<?php printf("%s?pageNum_m=%d%s", $currentPage, min($totalPages_m, $pageNum_m + 1), $queryString_m); ?>">Next</a> </p>
      </div></td>
  </tr>
</table>
</body>
</html>
<?php
mysql_free_result($m);
?>

ereptur

hmm.. most of that looks just fine. You can try to replace the first str_replace for the newline with

$row_m['blog'] = nl2br($row_m['blog']);

Other than that, I guess I can't really help. Sorry.