PHP - Code For Limit Characters To 25

Hey folks! Happy what ever you are celebrating

I am trying to limit the number of characters to 200 that this array echos. I have tried a few things... I have tried using "substr($arr_tem, 0, 200)" but obviously it is not working... but I think I am close-ish. Any assistance would be great!
 
Code: [Select]
###print array###
echo (implode(", ", array_keys($arr_tem)));
Thanks!

I had a piece of code which limited the number of items printed from a database.  However, I can no longer get it to work. 

Code: [Select]
$query = "SELECT * FROM productfeed WHERE description like '%$description%' LIMIT 0, 3";
This is the code I am trying to limit, but I cant get it to work.

Code: [Select]
<?php

ini_set('display_errors', 1);
error_reporting(-1);



$query = "SELECT * FROM productfeed";

if(isset($_GET['description']) && !empty($_GET['description'] ))
{
$description = $_GET['description'];
$query .= " WHERE description like '%$description%'";
}

if(isset($_GET['price']) && !empty($_GET['price']))
{
$price = explode('-', $_GET['price']);
$lowPrice = (int)$price[0];
$highPrice = (int)$price[1];

$query .= " AND price BETWEEN $lowPrice AND $highPrice";
}


$result = mysql_query($query);

while($row = mysql_fetch_assoc($result))

{

$id = $row['id'];
$image = $row['awImage'];
$link = $row['link'];
$description = $row['description'];
$fulldescription = $row['fulldescription'];
$price = $row['price'];

echo "<div class='productdisplayshell'>
<div class='productdisplayoutline'>
<div class='productborder'><center>
<a href='$link' target='_blank'><img src='$image' width=\"95%\" /></a>
</center> </div></div>
<div class='productdescriptionoutline'>
<div class='productdescriptionbox'>
<a href='$link' target='_blank' >$description</a>
</div>
<div class='productfulldescriptionbox'>$fulldescription</div>
</div>
<div class='productpriceoutline'>
<div class='productpricebox'>
<center>&#38;#163; $price</center>
</div>
<div class='productbuybutton'>
<center><a href='$link' target='_blank' ><img src=/images/buybutton.png /></a></center>
</div>
</div>
</div>";
} 

if ($_GET['description'] == $description ) {
echo 'Sorry, this product is not available.  Please visit our <a href="http://www.ukhomefurniture.co.uk">Homepage</a>.';
}


?>

<?php
function sanitizeString($description)
{
$description = mysql_real_escape_string($description);
$description = stripslashes($description);
$description = htmlentities($description);
return $var;

$price = mysql_real_escape_string($price);
$price = stripslashes($price);
$price = htmlentities($price);
return $var;


}
?>

Hey guys, Im getting an undefined index limit in the whole code.

This is my code:

<?php
session_start();
$_SESSION['prev_page'] = $_SERVER['REQUEST_URI'];
if (!session_is_registered('username')) {
    header("location:login.php");
}
?> 



<hr>

<style type="text/css">
table.gridtable {
  color:#333333;
  border-width: 1px;
  border-color: #666666;
  border-collapse: collapse;
        width: 100%;
}
table.gridtable th {
  border-width: 1px;
  padding: 1px;
  border-style: solid;
  border-color: #666666;
  background-color: #dedede;
}
table.gridtable td {
  border-width: 1px;
  padding: 1px;
  border-style: solid;
  border-color: #666666;
}

.valid {
  border-width: 1px;
  padding: 1px;
  border-style: solid;
  border-color: #666666;
  background-color: transparent;
}


</style>
</div>
<div class="newsJustify">
<script type="text/javascript">
   function checkall(delchk)
   {
      for (i = 0; i < delchk.length; i++)
      delchk[i].checked = true;
   }
</script>

<script type="text/javascript">
   function uncheckall(delchk)
   {
      for (i = 0; i < delchk.length; i++)
      delchk.checked = false;
   }
</script>



<script language="JavaScript">
function loadPage(list) {
  location.href=list.options[list.selectedIndex].value
}
</script>


<?php
mysql_connect("localhost", "root", "") or die(mysql_error());
mysql_select_db("chat") or die(mysql_error());

if (isset($_POST['del'])) {
    for ($count = 0; $count < count($_POST["delchk"]); $count++) {
        $delete = $_POST["delchk"][$count];
        $query  = "DELETE FROM members_shouts WHERE id = '$delete'";
        $result = mysql_query($query);
        if (!$result) {
            die("Error deleting accounts! Query: $query<br />Error: " . mysql_error());
        }
    }
}

$data = mysql_query("SELECT * FROM `members_shouts`") or die(mysql_error());
$rows = mysql_num_rows($data);

$page_rows = $_GET["limit"];
if ($page_rows == '') {
    // no double quotes (int)
    $page_rows = 5;
} elseif ($page_rows == 'all') {
    $page_rows = $rows;
} else {
    $page_rows = $_GET['limit'];
    /* validate this */
}
if (!isset($_GET['pagenum'])) {
    $page = 1;
} else {
    $page = (int) $_GET['pagenum'];
}
?>

<?php
$max_pages = ceil($rows / $page_rows);
$last      = ceil($rows / $page_rows);
$pagenum   = ($page && $page > 0 && $page <= $last) ? $page : 1;
$max       = 'limit ' . ($pagenum - 1) * $page_rows . ',' . $page_rows;
$data_p = mysql_query("SELECT * FROM members_shouts $max") or die(mysql_error());
?>





<?php
$result = mysql_query("SELECT * FROM members_shouts");
if (mysql_num_rows($result) > 0) {
?>



<span style="float: left;margin-left: 2px;">
<form>
<select name="file" size="1" onchange="loadPage(this.form.elements[0])" target="_parent._top">
            <option value="" <?php
    if ($_GET['limit'] == 0) {
        echo 'selected';
    }
?>>Select Limit</option>
            <option value="?limit=9" <?php
    if ($_GET['limit'] == 9) {
        echo 'selected';
    }
?>>9</option>
            <option value="?limit=15" <?php
    if ($_GET['limit'] == 15) {
        echo 'selected';
    }
?>>15</option>
            <option value="?limit=30" <?php
    if ($_GET['limit'] == 30) {
        echo 'selected';
    }
?>>30</option>
            <option value="?limit=all" <?php
    if ($_GET['limit'] == 'all') {
        echo 'selected';
    }
?>>All</option>
</select>
</form>
</span>

<span style="float: right;margin-top: 2px;margin-right: 2px;">
<center>
<?php
    if ($pagenum == 1) {
    } else {
        echo " <a href='{$_SERVER['PHP_SELF']}?pagenum=1&limit={$_GET['limit']}'>First</a> ";
        echo " | ";
        echo " ";
        $previous = $pagenum - 1;
        $current  = $pagenum;
        echo " <a href='{$_SERVER['PHP_SELF']}?pagenum=$previous&limit={$_GET['limit']}'>$previous</a> ";
        echo " | ";
    }
    echo "$pagenum";
    if ($pagenum == $last || $last == 0) {
    } else {
        $next = $pagenum + 1;
        echo " | ";
        echo " <a href='{$_SERVER['PHP_SELF']}?pagenum=$next&limit={$_GET['limit']}'>$next</a> ";
        echo " ";
        echo " | ";
        echo " <a href='{$_SERVER['PHP_SELF']}?pagenum=$last&limit={$_GET['limit']}'>Last</a> ";
    }
?>
</center>
</span>

<style type="text/css">
  .clear2 {
    clear:both;
    height:0px;
    overflow:hidden;
  }
</style>

  <div class="clear2"></div>
<hr>




<?php
    echo "<table class=\"gridtable\">
<thead>
    <tr>
        <th align=\"center\" scope=\"col\">user</th>
        <th align=\"center\" scope=\"col\">message</th>
        <th align=\"center\" scope=\"col\">when</th>
       <th align=\"center\" scope=\"col\">Delete?</th>
    </tr>
</thead>
<tbody>";
    echo "<form name = 'myform' action='' method='post'>";
?>




<?php
    while ($info = mysql_fetch_array($data_p)) {
        echo "<tr align=\"center\">";
        echo "<td class=\"valid\" >" . $info['user'] . "</td>";
        echo "<td class=\"valid\" >" . $info['message'] . "</td>";
        echo "<td>" . $info['when'] . "</td>";
        echo '<td><input type="checkbox" id="delchk" name="delchk[]" value="' . $info['id'] . '" /></td>';
        echo "</tr>";
    }
    echo "</tbody>";
    echo "</table>";
    echo "<hr>";
    echo "<input type='submit' name = 'del' value='Delete Selected'></form>";
    echo "<input type='button' onclick='checkall(document.myform[\"delchk\"]);' value='Select All'>";
    echo "<input type='button' onclick='uncheckall(document.myform[\"delchk\"]);' value='Deselect All'>";
    echo "<hr>";
?>



<?php
} else {
    // No rows were found ...
    echo '<center>No logged accounts.</center><hr>';
}
?> 
</hr>

Im getting these errors and cant figure out at all how to fix them.

the reason is, is that you can set the limit of rows to show on one page, and that is set by the variable limit

it is used in 'localhost/admin?limit=5' That is 5 rows per page.

There is also one called 'localhost/admin?limit=all' that is to show all the rows in one page.

Im getting the errors:

Code: [Select]
Notice: Undefined index: limit in C:\Program Files (x86)\EasyPHP5.2.10\www\admin.php on line 176

Notice: Undefined index: limit in C:\Program Files (x86)\EasyPHP5.2.10\www\admin.php on line 179

Notice: Undefined index: limit in C:\Program Files (x86)\EasyPHP5.2.10\www\admin.php on line 90

Notice: Undefined index: limit in C:\Program Files (x86)\EasyPHP5.2.10\www\admin.php on line 130

Notice: Undefined index: limit in C:\Program Files (x86)\EasyPHP5.2.10\www\admin.php on line 135

Notice: Undefined index: limit in C:\Program Files (x86)\EasyPHP5.2.10\www\admin.php on line 140

Notice: Undefined index: limit in C:\Program Files (x86)\EasyPHP5.2.10\www\admin.php on line 145

Notice: Undefined index: limit in C:\Program Files (x86)\EasyPHP5.2.10\www\admin.php on line 150

I would be glad if someone could help me out by showing me how to set the limit when there is no GET used in the url.[/i]

Unless buffer overflows or breaking out of code to perform a new command are problems that have been solved....

I am trying to figure out the proper PHP method for setting a boundary on a variable within a script. I have this variable $name which is fed a value from $_POST['name'] from a form field. Now this form field is limited in the HTML to accept only 20 characters, but someone could easily edit the form or outgoing post data. So I want to know how to limit the variable size in the script. In other languages it could be something like this: var name(20). So how do I do that in PHP?

Hi guys, I am still working on the same code, but encountered another problem. I have a form that takes imput to a MySQL database. It is 5 fields (id,title,category,content,tags). Then I have form a new page that searches with FullText on the (title and tags) fields and echos a link with the content of the result like this:

$link = "<h2><a class='example7' href='tutorial.php?id=" . $rowS['id'] . "&title=" . htmlentities($rowS['title'], ENT_QUOTES) . "&category=" . htmlentities($rowS['category'], ENT_QUOTES) . "&content=" . htmlentities($rowS['content'], ENT_QUOTES) . "&tags=" . htmlentities($rowS['tags'], ENT_QUOTES) . "'>" . htmlentities($rowS['title'], ENT_QUOTES) . "</a></h2><br><br>";

Then when the user clicks this link, it takes them to the tutorial.php page that all it does is echo the content passed by this link and make it look nice.

The problem is that when the data of the content field is greater than 3972 characters in length it doesn't generate the code in the tutorial.php page. It's like if the url is too long to be passed or something... Is that my problem that I'm passing the content in a url? If that is the problem then how can I correct it? How else can I pass the result from the link to the tutorial.php page?