Pacecode Blog
Tips,Ideas, Free scripts and more…
Customizing the Read More link with WordPress
Sep 23rd
If you have set your WordPress site to display post excerpts on the front or home page, you will want visitors to click on the title or a link to encourage them to continue reading your post or article, right? WordPress makes this technique easy, and customizable.
Here is the steps:
- Go to wordpress admin panel –> Design tab –> Theme Editor.
- Select Main Index template (index.php) to edit it
- Find the line “<?php the_content(‘Read the rest of this entry »’); ?>”
- And replace it with the following code.
<?php
$content = get_the_content($more_link_text, $stripteaser, $more_file);
if(strlen($content)>500) // chanage 500 as per your needs
{
$part_msg=substr($content, 0, 500);// chanage 500 as per your needs
echo ‘<p>’.$part_msg.’… ‘;
?>
<br /><br />
<a href=”<? comments_link(); ?>”>Read More…</a></div>
<?php
echo ‘</p>’;
}
else
{
echo ‘<p>’.$content.’</p></div>’;
}
?>
Where “500″ represents number of characters that you want to show.
If you cannot able to make the above changes with the wordpress theme editor, use your ftp.
Here is the template directory
/public_html/blog/wp-content/themes
or
/www/blog/wp-content/themes
where blog is the directory where i installed my wordpress
Problem with WordPress admin-login? or Forgot your WordPress admin password?
Sep 23rd
Reset your local wordpress password easily
While building my theme I installed wordpress with lots of sample data and I realized.
mysql picture
I forgot my password and couldn’t recover it even with a “forgot password” link. So after
playing around for 30 mins, I reset my password. This is how.
WordPress admin login error happen for two following reason:
- User may forgot the admin password
- User might have entered wrong site url in setting tab
go to your mysql administrator (usually called as phpmyadmin)
- select your wordpress database
- run the following update query with your password as in bracket using sql tab
SELECT ‘wordpress’ //this should be your database name
UPDATE `wp_users` SET `user_pass` = MD5( ‘password’ ) WHERE `ID` =1 LIMIT 1 ;
where password is your new password. Your password is reset, for the admin acount.
For admin side login problem, there might be another reason. You might have given wrong site
url. This can be update by the following query
UPDATE `wp_options` SET `option_value` = ‘You site url’ WHERE `wp_options`.`option_id` =1
LIMIT 1 ;
It will update your site url in the wp_options table and it will solve your login error.
Magic with htaccess file – Increase execution time, session expiry time and file upload size limit
Sep 22nd
<IfModule mod_php5.c>
php_value post_max_size 5M
php_value upload_max_filesize 5M
php_value memory_limit 300M
php_value max_execution_time 259200
php_value max_input_time 259200
php_value session.gc_maxlifetime 1200
</IfModule>
php_value memory_limit 300M – Set higher default php_value memory_limit in .htaccess
upload_max_filesize 5M - it increases default upload limit. The default upload limit is 2MB. the above htaccess increase increases file limit 2mb to 5 mb
php_value max_execution_time:
Set the number of seconds a script is allowed to run. If this is reached,
the script returns a fatal error. The default limit is 30 seconds or, if it
exists, the max_execution_time value defined in the configuration file. If
seconds is set to zero, no time limit is imposed.
php_value session.gc_maxlifetime:
The session.gc_maxlifetime only sets the age of the session files that will be deleted when
garbage collection runs.
If you have a busy web site with a lot of sessions being created, garbage collection will
run based on session.gc_probability/session.gc_divisor. Despite this being called
“probability” I tested this and it is strictly a count. Using the default
gc_probability/gc_divisor of 1/100, this means that garbage collection will run every 100
new sessions (Edit: Actually this occurs within the session_start() coding and would count
re-started sessions as well) and delete any existing session files that are older than the
session.gc_maxlifetime. There is no file locking on the session files, so active session
files will be deleted and things like users getting logged out will occur.
If this is on shared hosting and the session files are all kept in the default location and
someone else is using a smaller session.gc_maxlifetime or a more frequent
gc_probability/gc_divisor, then any of the session files will get deleted based on the
lowest value of gc_maxlifetime and the most frequent gc_probability/gc_divisor.
You need to increase session.gc_maxlifetime or make session.gc_divisor larger and if this is
on shared hosting, set session.save_path to be a location within your web space.
Part of Page refresh using AJAX with timed delay
Sep 21st
<head>
<script type=”text/javascript”>
function makAx() // this function to activate XMLHttpRequest Object
{
try
{
xm = new ActiveXObject(“Msxml2.XMLHTTP”);
return true;
}
catch (e)
{
try
{
xm = new ActiveXObject(“Microsoft.XMLHTTP”);
return true;
}
catch (e2)
{
xm = false;
}
}
if (!xm && typeof XMLHttpRequest != ‘undefined’)
{
xm = new XMLHttpRequest();
return true;
}
}
function showImages()
{
if(makAx()) // XMLHttpRequest checked here
{
url = “external-page-for-db-query.php”; // this file will contains your db query
callavail();
}
}
function callavail()
{
xm.open(“GET”,url,true); // This is ajax functionality. It may have true(for synchronous request) or false(for asynchronous request)
xm.onreadystatechange = cavail;
xm.send(null);
}
function cavail()
{
if(xm.readyState == 4) // If ready state reached
{
var response = xm.responseText;
var str = document.getElementById(“showResult”); // result of “external-page-for-db-query.php” will come here
str.innerHTML = response;
setTimeout(“showImages()”,1000); // here 1000 represents one second for time delay. showImage() function will be called with the specified time delay
}
}
</script>
</head>
<body>
<div id=”showResult”></div> <!–page result will be displayed here–>
</body>
</html>
Part of page refresh with time delay using MockAJAX – Facebook Developers
Sep 21st
A Simple script that make our application works great. Yes, The following FBJS – FaceBook JavaScript will help you for part of page refresh in the facebook applications.
Uses:
1) Helps to retrieve data from your server database without refreshing the page
2) It would be useful for cricket scores and other live datas.
Mock AJAX Script as follows,
<script>
<!–
function partRefresh(){
var ajax = new Ajax();
ajax.responseType = Ajax.FBML;
ajax.ondone = function(data) {
document.getElementById(’partId’).setInnerFBML(data);
setTimeout(function() {partRefresh()},60000); // Making time delay
}
ajax.post(“http://www.example.com/filename.php”);
}
//–>
</script>
<div id=”partId”></div> // the output of filename.php is displayed here
<script>
partRefresh(); // Just calling the function on browser loads
</script>