How to hide a dive on url change using jQuery

Example of using this method

Enjoy.....!

How to redirect login user on desire page in wordpress

Copy this and paste this code in functions.php

<?php
add_filter('login_redirect', '_catch_login_error', 10, 3);
function _catch_login_error($redir1, $redir2, $wperr_user)
{
    if(!is_wp_error($wperr_user) || !$wperr_user->get_error_code()) return $redir1;

    switch($wperr_user->get_error_code())

    {
        case 'incorrect_password':

        case 'empty_password':

        case 'invalid_username':

        default:
     wp_redirect(site_url().'/home-page/?error='.$wperr_user->get_error_code());
    }
    return $redir1;
}
?>

how to make make shortcode of page/post in wordpress

Copy and paste this code in your function.php file

<?php
function digwp_includeContentShortcode($atts) {
  
  $thepostid = intval($atts[postidparam]);
  $output = '';

  query_posts("p=$thepostid&post_type=page");
  if (have_posts()) : while (have_posts()) : the_post();
    $output .= get_the_content($post->ID);
  endwhile; else:
    // failed, output nothing
  endif;
  wp_reset_query();

  return $output;

}

// USAGE
/*  In the post content, you can use 

[postPage_include postidparam="1234"]
"1234" would be the WordPress ID of the Page you are 

trying to include  */
add_shortcode("postPage_include", "digwp_includeContentShortcode");
?>

Method for use in post or page in back-end :-
[postPage_include postidparam="1234"]
"1234" would be the WordPress ID of the Page you are
Method for use in post or page in template :-
echo do_shortcode( '[postPage_include postidparam="1234"]' );

Create a custom widget and call it by using shortcode in wordpress

Copy code in functions.php

<?php
function widget($atts) {
    
    global $wp_widget_factory;
    
    extract(shortcode_atts(array(
        'widget_name' => FALSE
    ), $atts));
    
    $widget_name = wp_specialchars($widget_name);
    
    if (!is_a($wp_widget_factory->widgets[$widget_name], 'WP_Widget')):
        $wp_class = 'WP_Widget_'.ucwords(strtolower($class));
        
        if (!is_a($wp_widget_factory->widgets[$wp_class], 'WP_Widget')):
            return '
'.sprintf(__("%s: Widget class not found. Make sure this widget exists and the class name is correct"),''.$class.'').'
';
        else:
            $class = $wp_class;
        endif;
    endif;
    
    ob_start();
    the_widget($widget_name, $instance, array('widget_id'=>'arbitrary-instance-'.$id,
        'before_widget' => '',
        'after_widget' => '',
        'before_title' => '',
        'after_title' => ''
    ));
    $output = ob_get_contents();
    ob_end_clean();
    return $output;
    
}
add_shortcode('widget','widget'); 
?>

Usage
Now in Post/Page content, you can use the widget just by referencing it by name:
[widget widget_name="Your_Custom_Widget"]
enjoy!!

use shortcodes within a WordPress Text widget

By default, WordPress shortcodes do not work within Text widgets. If you need this functionality, it is quite easy to accomplish, simply follow the steps below.

1. Log into your WordPress Dashboard
2. Under "Appearance" click "Editor"
3. In the list of files on the right of the page, click "functions.php"
4. At the bottom of the functions.php file, add the following code:
   add_filter( 'widget_text', 'shortcode_unautop');
   add_filter( 'widget_text', 'do_shortcode');
   Click "Update File" and your shortcodes should now work in your Text widgets!

how to make shortcode of custome field type in wordpress

1. Copy this php script in your functions.php
function field_scode($value){
global $post;
$name = $value['name'];
if(empty($name)) return;
return get_post_meta($post->ID,$name,true);
}
add_shortcode('my_shortcode','field_scode');
/* use this shortcode in your post or page or in template
exp:- [my_shortcode  name="put_field_name_here"]
*/

Php script for file download

1. PHP Script for image download you can make any file to to download Paste this script in your file or save it download.php

<?php
$imageurl = filter_input(INPUT_GET, 'imageurl', FILTER_SANITIZE_URL);
// Clean the image URL to get the path and make sure the user is just getting an image.
$url_parsed = parse_url($imageurl);
$file = $_SERVER['DOCUMENT_ROOT'] .'/base-directory'. $url_parsed['path'];
print_r($file);
// Get the extension of the file.
$extension = substr(strrchr($file ,'.'), 1);

// Limit the extensions in this array to those you're allowing the user to download.

$allowed_extensions = array('jpg', 'jpeg', 'png', 'gif');

// Make sure the file requested is in your list of allowed extensions to make sure the user isn't downloading something other than an image.

if (in_array(strtolower($extension), $allowed_extensions)) {

    if (file_exists($file)) {

        header ('Content-type: octet/stream');

        header ('Content-disposition: attachment; filename=' . basename($file) . ';');

        header('Content-Length: ' . filesize($file));

         ob_clean();
        readfile($file);
    }
}
?>

1. HTML Code Paste this code in your html file

    Download  
	

Enjoy......

How to show costum sidebar in wordpress template

<?php

/**

 * Template Name: Home Page Template

 */

get_header(); ?>

Make plugin using shortcode in wordpress to display database information

<?php
/**

 * Plugin Name:user info

 * Plugin URI: http://wordpress_aprai.org

 * Description: this plugin will be display data from database you can use this shortcode any where

 * Author:Arunendra Pratap rai

 */


 function display()

 {

global $wpdb;

$sql ="select * from `first_projectposts` where `post_type` = 'DisplayPost'";

$query = $wpdb->get_results($sql);

echo '';

foreach($query as $data){

$id = $data->ID;   $fname=$data->post_title;       $lname=$data->post_status;    $email=$data->post_type;  $pass=$data->post_name;

echo '';

}

echo '
id
first name
Last name
email id
Password
'.$id.'
'.$fname.'
'.$lname.'
'.$email.'
'.$pass.'
';

}

 add_shortcode( 'short_code', 'display' ); // you can use any unique name for short code
?>

USAGE :- in post or page use :-
[short_code] In template use:-
<?php echo do_shortcode('[short_code]') ?>

Wordpress install and uninstall plugin table during activation and deactivation of plugin

<?php
/*

Plugin Name: sample plugin

Plugin URI: http://URI_Of_Page_Describing_Plugin_and_Updates

Description: This plugin is used to add youtube embeded video code and show video in widgets.

Version: 2.1

Author: Arunendra Pratap Rai

Author URI: http://URI_Of_The_Plugin_Author

License: A "Slug" license name e.g. GPL2

*/

register_activation_hook(__FILE__,'pro_install'); // table installation hook

register_deactivation_hook(__FILE__ , 'pro_uninstall' ); //table uninstallation hook

function pro_install()

{

    global $wpdb;

    $table = wp_."table_name";

    $structure = "CREATE TABLE $table (

        id INT(9) NOT NULL AUTO_INCREMENT,

        fname VARCHAR(255) NOT NULL,

        lname VARCHAR(255) NOT NULL,

      


    UNIQUE KEY id (id)

    );";

    $wpdb->query($structure);

      // Populate table

    $wpdb->query("INSERT INTO $table(id,fname,lname)

        VALUES('1', 'arunendra','Pratap rai')");


}

function pro_uninstall()

{

    global $wpdb;

    $table = wp_."table_name";

    $structure = "drop table if exists $table";

    $wpdb->query($structure); 

}
?>

PHP Interview Question Answer

1) What is PHP.?

PHP is a web language based on scripts that allows developers to dynamically create generated web pages.

2) What does the initials of PHP stand for.?

PHP means PHP: Hypertext Preprocessor.

3) Which programming language does PHP resemble to.?

PHP syntax resembles Perl and C

4) What does PEAR stands for.?

PEAR means “PHP Extension and Application Repository”. it extends PHP and provides a higher level of programming for web developers.

5) What is the actually used PHP version.?

Version 5 is the actually used version of PHP.

6) How do you execute a PHP script from the command line.?

Just use the PHP command line interface (CLI) and specify the file name of the script to be executed as follows:

?

1	php script.php

7) How to run the interactive PHP shell from the command line interface.?