limit data from array

jacko_162 · February 6, 2010

i am calling an array for multiple fields and displaying them in a pagination on my custom cms script.

when i want to echo data i use:

<?=$data["content"]?>

how can i limit this to say only echo the first 40 characters of the data stored in the database,

for example i want it to display like this;

"this is some test content and the rest cannot be seen unless.............."

obviously the text is wrapped in a <a> tag and is clickable to see the rest of the content.

any help would be great

harristweed · February 6, 2010

To choose the first 40 characters might chop a word in half, I think better to display whole word.

// first find the first space after 40 characters, this should be the end of a word
$offset =strpos ( $data["content"], " " ,40) ;
//then put into variable
$shorter_list = substr ($data["content"],0,$offset);
//add the trailing dots
$shorter_list.="....";

jacko_162 · February 6, 2010

thanks,

ad how would i echo this? would i replace <?=$data["content"]?> with anything?

harristweed · February 6, 2010

If you don't know how to echo variables I suggest you read some basic PHP Tutorials

jacko_162 · February 6, 2010

so im assuming i have to echo $shorter_list

i will have a play around now and let you know.

thx for the info harristweed

jacko_162 · February 6, 2010

ok when i echo the $shorter_list variable i just get the ... echoed and not the "content" field?

harristweed · February 6, 2010

this works....

$data["content"]="a load of stuff a load of stuff a load of stuff a load of stuff a load of stuff a load of stuff "; 
  // first find the first space after 40 characters, this should be the end of a word
$offset =strpos ( $data["content"], " " ,40) ;
//then put into variable
$shorter_list = substr ($data["content"],0,$offset);
//add the trailing dots
$shorter_list.="....";
echo $shorter_list;

first echo $data["content"] and make sure it has content

jacko_162 · February 6, 2010

when i echo $data["content"] i get my data but the moment i echo $shorter_list i get nothing but the dots "...."

here is full code for the page, apologies for the tables etc... its already a working page

<?php
session_start();
?>
<? include("header.php") ?>
<?

$connect = @mysql_connect("$host", "$username", "$password");

if (!($connect)) // If no connect, error and exit().
{
echo("<p>Unable to connect to the database server.</p>");
exit();
}

if (!(@mysql_select_db($database))) // If can't connect to database, error and exit().
{
echo("<p>Unable to locate the $database.</p>");
exit();
}

if (!($limit)){
$limit = 5;} // Default results per-page.
if (!($page)){
$page = 0;} // Default page value.
$numresults = mysql_query("SELECT * FROM $table3 "); // the query.
$numrows = mysql_num_rows($numresults); // Number of rows returned from above query.
if ($numrows == 0){
echo("No Results Found, Please try another catagory!"); // bah, modify the "Not Found" error for your needs.
exit();}

$pages = intval($numrows/$limit); // Number of results pages.

// $pages now contains int of pages, unless there is a remainder from division.

if ($numrows%$limit) {
$pages++;} // has remainder so add one page

$current = ($page/$limit) + 1; // Current page number.

if (($pages < 1) || ($pages == 0)) {
$total = 1;} // If $pages is less than one or equal to 0, total pages is 1.

else {
$total = $pages;} // Else total pages is $pages value.

$first = $page + 1; // The first result.

if (!((($page + $limit) / $limit) >= $pages) && $pages != 1) {
$last = $page + $limit;} //If not last results page, last result equals $page plus $limit.

else{
$last = $numrows;} // If last results page, last result equals total number of results.

//escape from PHP mode.
?>
<html>
    <head>

        <meta http-equiv="content-type" content="text/html; charset=utf-8" />
        <meta http-equiv="content-style-type" content="text/css" />
        <meta http-equiv="content-script-type" content="text/javascript" />
    <title>Cpanel - News</title>

</head>

<body>
<div id="content" class="basic">
<div id="container">
  <div class="inner-container">

			<!-- Main content – all content is within boxes. Feel free to add your boxes (see the examples on the bottom of this document) and your content within -->
			<div class="box box-75 altbox"><!-- .altbox for alternative box's color -->
				<div class="boxin">
					<div class="header">
						<h3>News  » All</h3>
				      <a class="button" href="addnews.php">Add News »</a><!-- Action button in the header of the box --><br>
                          <table width="100%" border="0" cellspacing="0" cellpadding="2">
                            <tr>
                              <td><h2>Results 
						  <strong><?=$first?></strong>
						 - 
						<strong><?=$last?></strong>
						 of 
						<strong><?=$numrows?></strong></h2></td>
                              <td><div align="right">
<h2> <a class="ico" href="<?=$PHP_SELF?>?query=<?=$query?>&page=<?=$page?>&limit=5"><strong><span class="whitelink"> 5</span></strong> <img src="images/results_5.gif" border="0"></a> <a class="ico" href="<?=$PHP_SELF?>?query=<?=$query?>&page=<?=$page?>&limit=10"> <strong><span class="whitelink">10</span></strong> <img src="images/results_10.gif" border="0"></a>  <a class="ico" href="<?=$PHP_SELF?>?query=<?=$query?>&page=<?=$page?>&limit=20"><strong><span class="whitelink"> 20</span></strong> <img src="images/results_20.gif" border="0"></a><img src="images/spacer.gif" width="15" height="1"></h2>
                              </div></td>
                            </tr>
                          </table>
                          
</div><div>
                             </div>
                          <div class="content">
						<table border="0" cellpadding="0" cellspacing="0">
							<thead>
								<tr>
								  <td><div align="left">Title</div></td>
									<th><div align="left">Content</div></th>
								  <td width="70" class="tc"><div align="left">Date</div></td>
								  <td width="50" class="tc"><div align="left">Time</div></td>
								  <td width="50" class="tc"><div align="right"></div></td>
                                        <?
//Go back into PHP mode.

// Now we can display results.
$results = mysql_query("SELECT * FROM $table3 ORDER BY id ASC LIMIT $page, $limit");
while ($data = mysql_fetch_array($results))
{
?>
</tr>
                              </thead>

<tbody>
  <tr class="first">
    <td class="tc"><div align="left">
      <?=$data["title"]?>
    </div></td>
    <td><div align="left">
<?php    
// first find the first space after 40 characters, this should be the end of a word
$offset =strpos ( $data["content"], " " ,40) ;
//then put into variable
$shorter_list = substr ($data["content"],0,$offset);
//add the trailing dots
$shorter_list_content="...."; 

    
      echo $shorter_list; ?>
    </div></td>
    <td width="70"><div align="left">
      <?=$data["date"]?>
    </div></td>
    <td width="50"><div align="left">
      <?=$data["time"]?>
    </div></td>
    <!-- a.ico-comms for comment-like backgrounds -->
    <td width="50"><div align="right"><a class="ico" id='tooltip' title='Edit This Item' href="editnews.php?ID=<?=$data["id"]?>"><img src="Includes/css/img/led-ico/pencil.png" border="0" /></a> <a class="ico" id='tooltip' title='Delete This Item' href="remove.php?ID=<?=$data["id"]?>&db=news"><img src="Includes/css/img/led-ico/delete.png" border="0" /></a>
      <? } ?>
    </div>							</td>
    </tr>
    </tbody>
</table>					  
<div class="pagination">
							<ul>

								  <?
if ($page != 0) { // Don't show back link if current page is first page.
$back_page = $page - $limit;
echo("<a href=\"$PHP_SELF?query=$query&page=$back_page&limit=$limit\">back</a>    \n");}

for ($i=1; $i <= $pages; $i++) // loop through each page and give link to it.
{
$ppage = $limit*($i - 1);
if ($ppage == $page){
echo("<b>$i</b> \n");} // If current page don't give link, just text.
else{
echo("<a href=\"$PHP_SELF?query=$query&page=$ppage&limit=$limit\">$i</a> \n");}
}

if (!((($page+$limit) / $limit) >= $pages) && $pages != 1) { // If last page don't give next link.
$next_page = $page + $limit;
echo("    <a href=\"$PHP_SELF?query=$query&page=$next_page&limit=$limit\">next</a>\n");}
?>

							</ul>
				</div></div></div>
</div>
            <div class="box box-25"><!-- box 25% width -->
				<div class="boxin">
					<div class="header">
						<h3>Menu</h3>
					</div>
					<div class="content">
                        
<ul class="simple"><!-- ul.simple for simple listings of pages, categories, etc. -->
<li><strong><a class="ico" title='Index Page' href="index.php"><img src="Includes/css/img/h-ico/Globe.png" border="0" /> Index</a></strong></li><!-- Add or Edit Index Page Main Menu Items -->
<li><strong><a class="ico" title='Products Page' href="mainproducts.php"><img src="Includes/css/img/h-ico/cash.png" border="0" /> Products</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
<li><strong><a class="ico" title='Catagories Page' href="catagory.php"><img src="Includes/css/img/h-ico/library bookmarked.png" border="0" /> Catagories</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
<li><strong><a class="ico" title='Manufacturers Page' href="manufacturers.php"><img src="Includes/css/img/h-ico/applications.png" border="0" /> Manufacturers</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
<li><strong><a class="ico" title='News Page' href="news.php"><img src="Includes/css/img/h-ico/notebook.png" border="0" /> News</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
<li><strong><a class="ico" title='Customer Enquiries' href="enquiries.php"><img src="Includes/css/img/h-ico/unread mail.png" border="0" /> Enquiries</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
<li><strong><a class="ico" title='Edit Site Pages' href="pages.php"><img src="Includes/css/img/h-ico/new doc.png" border="0" /> Pages</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
<li><strong><a class="ico" title='Product User Comments' href="comments.php"><img src="Includes/css/img/h-ico/comments.png" border="0" /> Comments</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
<li><strong><a class="ico" title='Site Setup' href="setup.php"><img src="Includes/css/img/h-ico/advanced.png" border="0" /> Setup</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
<li><strong><a class="ico" title='About RCPanel' href="about.php"><img src="Includes/css/img/h-ico/info.png" border="0" /> About</a></strong></li><!-- DONT FORGET TO EDIT TOOLTIP! -->
						</ul>
				  </div>
	</div>
  </div>

</div>
  <!-- .inner-container --></div></div>

</body>

appreciate any help

jacko_162 · February 7, 2010

can anyone help me? google isnt answering my questions

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limit data from array

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