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How To Restrict WP Admin Access To Certain Users

April 17, 2019 By Editorial Staff in Featured, WordPress No Comments Tags: Code Snippet, Snippet, WordPress, WordPress Snippet, WordPress Snippets

Security wise, you do wish to restrict the access of WP Admin area to certain users only. While, you can achieve this by going onto your site’s cPanel area but thanks to snippet below, with adding it to your theme’s functions.php file of your theme, you will be able to achieve this.

function restrict_access_admin_panel(){
                global $current_user;
                get_currentuserinfo();
	if (
			// Look for the presence of /wp-admin/ in the url
			stripos($_SERVER['REQUEST_URI'],'/wp-admin/') !== false
			&&
			// Allow calls to async-upload.php
			stripos($_SERVER['REQUEST_URI'],'async-upload.php') == false
			&&
			// Allow calls to admin-ajax.php
			stripos($_SERVER['REQUEST_URI'],'admin-ajax.php') == false
		) {
				// Does the current user fail the required capability level?
                if (!current_user_can('activate_plugins')) {
                        wp_redirect( get_bloginfo('url') );
                        exit;
                }
			}
        }
        add_action('admin_init', 'restrict_access_admin_panel', 1);

function restrict_access_admin_panel(){

global $current_user;

get_currentuserinfo();

if (

// Look for the presence of /wp-admin/ in the url

stripos($_SERVER['REQUEST_URI'],'/wp-admin/') !== false

// Allow calls to async-upload.php

stripos($_SERVER['REQUEST_URI'],'async-upload.php') == false

// Allow calls to admin-ajax.php

stripos($_SERVER['REQUEST_URI'],'admin-ajax.php') == false

) {

// Does the current user fail the required capability level?

if (!current_user_can('activate_plugins')) {

wp_redirect( get_bloginfo('url') );

exit;

}

add_action('admin_init', 'restrict_access_admin_panel', 1);

Snippet Source/Credit: WordPress Codex

How To Add Sortable Column In WordPress Admin Area

April 15, 2019 By Editorial Staff in WordPress No Comments Tags: Code, Code Snippet, Snippet, WordPress, WordPress Snippet

Using the following snippet will let you add sortable column in WordPress admin area.

add_filter( 'manage_posts_columns', 'namespace_AddXXXColumn' );
add_action( 'manage_posts_custom_column', 'namespace_AddXXXValue', 10, 2 );
function namespace_AddXXXColumn($cols) {
        $cols['xxx'] = __('XXX');
        return $cols;
}
function namespace_AddXXXValue($column_name, $post_id) {
    if ( 'xxx' == $column_name ) {
        echo get_permalink($post_id); // for example
    }
}
// Register the column as sortable
function xxx_column_register_sortable( $columns ) {
	$columns['xxx'] = 'xxx';
	return $columns;
}
add_filter( 'manage_edit-post_sortable_columns', 'xxx_column_register_sortable' );

add_filter( 'manage_posts_columns', 'namespace_AddXXXColumn' );

add_action( 'manage_posts_custom_column', 'namespace_AddXXXValue', 10, 2 );

function namespace_AddXXXColumn($cols) {

$cols['xxx'] = __('XXX');

return $cols;

}

function namespace_AddXXXValue($column_name, $post_id) {

if ( 'xxx' == $column_name ) {

echo get_permalink($post_id); // for example

}

// Register the column as sortable

function xxx_column_register_sortable( $columns ) {

$columns['xxx'] = 'xxx';

return $columns;

}

add_filter( 'manage_edit-post_sortable_columns', 'xxx_column_register_sortable' );

Snippet Source/Credit: Snipplr

How To Render Your Twitter Followers Count In Your WordPress Blog

April 10, 2019 By Editorial Staff in WordPress No Comments Tags: Code Snippet, Snippet, WordPress, WordPress Snippet, WordPress Snippets

Adding the following snippet to your theme’s functions.php file, you will be able to render your Twitter followers count. Also, remember to replace “planetabhi” with your own Twitter screen name.

function my_followers_count($screen_name = 'planetabhi'){
	$key = 'my_followers_count_' . $screen_name;
	// Let's see if we have a cached version
	$followers_count = get_transient($key);
	if ($followers_count !== false)
		return $followers_count;
	else
	{
		// If there's no cached version we ask Twitter
		$response = wp_remote_get("http://api.twitter.com/1/users/show.json?screen_name={$screen_name}");
		if (is_wp_error($response))
		{
			// In case Twitter is down we return the last successful count
			return get_option($key);
		}
		else
		{
			// If everything's okay, parse the body and json_decode it
			$json = json_decode(wp_remote_retrieve_body($response));
			$count = $json->followers_count;
			// Store the result in a transient, expires after 1 day
			// Also store it as the last successful using update_option
			set_transient($key, $count, 60*60*24);
			update_option($key, $count);
			return $count;
		}
	}
}
echo "I have " . my_followers_count('planetabhi') . " followers";

function my_followers_count($screen_name = 'planetabhi'){

$key = 'my_followers_count_' . $screen_name;

// Let's see if we have a cached version

$followers_count = get_transient($key);

if ($followers_count !== false)

return $followers_count;

else

{

// If there's no cached version we ask Twitter

$response = wp_remote_get("http://api.twitter.com/1/users/show.json?screen_name={$screen_name}");

if (is_wp_error($response))

{

// In case Twitter is down we return the last successful count

return get_option($key);

}

else

{

// If everything's okay, parse the body and json_decode it

$json = json_decode(wp_remote_retrieve_body($response));

$count = $json->followers_count;

// Store the result in a transient, expires after 1 day

// Also store it as the last successful using update_option

set_transient($key, $count, 60*60*24);

update_option($key, $count);

return $count;

}

echo "I have " . my_followers_count('planetabhi') . " followers";

Snippet Source/Credit: Snipplr

How To Load Content Externally In WordPress

April 8, 2019 By Editorial Staff in WordPress No Comments Tags: Code Snippet, Snippet, WordPress, WordPress Snippet, WordPress Snippets

The following snippet will let you load content externally in WordPress.

require($_SERVER['DOCUMENT_ROOT'].'/wp-load.php' );

1	require($_SERVER['DOCUMENT_ROOT'].'/wp-load.php' );

Snippet Source/Credit: Snipplr

How To Prevent WordPress Stylesheet From Being Cached

April 3, 2019 By Editorial Staff in WordPress No Comments Tags: Code Snippet, Snippet, WordPress, WordPress Snippet, WordPress Snippets

We often are in the condition in which we are looking out for the ways by which we can prevent WordPress stylesheet from being cached. To help you out with the same, the following snippet below will let you achieve the same.

<link rel="stylesheet" href="<?php $theme_data = get_theme_data(TEMPLATEPATH . '/style.css'); bloginfo('stylesheet_url'); echo '?' . $theme_data['Version']; ?>" type="text/css" media="screen, projection" />

1	<link rel="stylesheet" href="<?php $theme_data = get_theme_data(TEMPLATEPATH . '/style.css'); bloginfo('stylesheet_url'); echo '?' . $theme_data['Version']; ?>" type="text/css" media="screen, projection" />

Snippet Source/Credit: WPRecipes.com

How To Change The Label In Your WordPress Blog

April 1, 2019 By Editorial Staff in Featured, WordPress No Comments Tags: Article, Code Snippet, Label, Snippet, WordPress, WordPress Blog, WordPress Snippet

It is pretty much common that you want to customize the label of certain things, say “post” label to “article” in your WordPress blog. It can be done with just few lines of code, just simply copy and paste the following snippet in your theme’s functions.php file and you are done.

add_filter('gettext',  'change_post_to_article');
add_filter('ngettext',  'change_post_to_article');
function change_post_to_article($translated) {
     $translated = str_ireplace('Post',  'Article',  $translated);
     return $translated;

add_filter('gettext', 'change_post_to_article');

add_filter('ngettext', 'change_post_to_article');

function change_post_to_article($translated) {

$translated = str_ireplace('Post', 'Article', $translated);

return $translated;

Snippet Source/Credit: Smashing Magazine

How To Resize Image Using TimThumb

March 27, 2019 By Editorial Staff in Featured, WordPress No Comments Tags: Code Snippet, Snippet, WordPress, WordPress Snippet, WordPress Snippets

Using the whole timthumb script, which being saved as sized.php file in the theme directory, you will be able to resize image.

function get_thumb_src($src, $width="100", $height="100", $quality="85", $alignment="", $zoomcrop="", $filters="", $sharpen="", $canvascolor="", $transparency=""){
	if($src=="") return FALSE;
	$src 			= "src=".$src;
	$width			= "&w=".$width;
	$height			= "&h=".$height;
	$quality		= "&q=".$quality;
	$alignment		= (!empty($alignment)) ? "&a=".$alignment : "";
	$zoomcrop		= (!empty($zoomcrop)) ? "&zc=".$zoomcrop : "";
	$filters		= (!empty($filters)) ? "&f=".$filters : "";
	$sharpen		= (!empty($sharpen)) ? "&s=".$sharpen : "";
	$canvascolor	= (!empty($canvascolor)) ? "&cc=".$canvascolor : "";
	$transparency	= (!empty($transparency)) ? "&ct=".$transparency : "";
	return get_template_directory_uri()."/sized.php?".$src.$width.$height.$quality.$alignment.$zoomcrop.$filters.$sharpen.$canvascolor.$transparency;
}
function the_thumb_src($src, $width="100", $height="100", $quality="85", $alignment="", $zoomcrop="", $filters="", $sharpen="", $canvascolor="", $transparency=""){
	if($thumb = get_thumb_src($src, $width, $height, $quality, $alignment, $zoomcrop, $filters, $sharpen, $canvascolo, $transparency)){
		echo $thumb;
	}
}
function get_thumb($src, $alt="", $classes="", $id=""){
	return "<img class='".$classes."' id='".$id."' src='".$src."' alt='".$alt."' />";
}
function the_thumb($src, $alt="", $classes="", $id=""){
	echo get_thumb($src, $alt, $classes, $id);
}
function get_main_thumb($post_id, $alt="", $classes="", $id="", $width="", $height=""){
	$src = wp_get_attachment_image_src( get_post_thumbnail_id($post_id), "full", false);
	if($src[0]=="") return FALSE;
	$width = ($width!="") ? $width : "750";
	$height = ($height!="") ? $height : "250";
    $src = get_thumb_src($src[0], $width, $height);
	return "<img class='".$classes."' id='".$id."' src='".$src."' alt='".$alt."' />";
}
function the_main_thumb($post_id, $alt="", $classes="", $id="", $width="", $height=""){
	if($thumb = get_main_thumb($post_id, $alt, $classes, $id, $width, $height)){
		echo $thumb;
	}
}

function get_thumb_src($src, $width="100", $height="100", $quality="85", $alignment="", $zoomcrop="", $filters="", $sharpen="", $canvascolor="", $transparency=""){

if($src=="") return FALSE;

$src = "src=".$src;

$width = "&w=".$width;

$height = "&h=".$height;

$quality = "&q=".$quality;

$alignment = (!empty($alignment)) ? "&a=".$alignment : "";

$zoomcrop = (!empty($zoomcrop)) ? "&zc=".$zoomcrop : "";

$filters = (!empty($filters)) ? "&f=".$filters : "";

$sharpen = (!empty($sharpen)) ? "&s=".$sharpen : "";

$canvascolor = (!empty($canvascolor)) ? "&cc=".$canvascolor : "";

$transparency = (!empty($transparency)) ? "&ct=".$transparency : "";

return get_template_directory_uri()."/sized.php?".$src.$width.$height.$quality.$alignment.$zoomcrop.$filters.$sharpen.$canvascolor.$transparency;

}

function the_thumb_src($src, $width="100", $height="100", $quality="85", $alignment="", $zoomcrop="", $filters="", $sharpen="", $canvascolor="", $transparency=""){

if($thumb = get_thumb_src($src, $width, $height, $quality, $alignment, $zoomcrop, $filters, $sharpen, $canvascolo, $transparency)){

echo $thumb;

}

function get_thumb($src, $alt="", $classes="", $id=""){

return "<img class='".$classes."' id='".$id."' src='".$src."' alt='".$alt."' />";

}

function the_thumb($src, $alt="", $classes="", $id=""){

echo get_thumb($src, $alt, $classes, $id);

}

function get_main_thumb($post_id, $alt="", $classes="", $id="", $width="", $height=""){

$src = wp_get_attachment_image_src( get_post_thumbnail_id($post_id), "full", false);

if($src[0]=="") return FALSE;

$width = ($width!="") ? $width : "750";

$height = ($height!="") ? $height : "250";

$src = get_thumb_src($src[0], $width, $height);

return "<img class='".$classes."' id='".$id."' src='".$src."' alt='".$alt."' />";

}

function the_main_thumb($post_id, $alt="", $classes="", $id="", $width="", $height=""){

if($thumb = get_main_thumb($post_id, $alt, $classes, $id, $width, $height)){

echo $thumb;

}

Snippet Source/Credit: Binarymoon

How To Remove WordPress Standard Gallery Style

March 25, 2019 By Editorial Staff in WordPress No Comments Tags: Code Snippet, Snippet

On simply adding the following snippet to your theme’s functions.php file, you will be able to remove WordPress standard gallery style.

add_filter( 'use_default_gallery_style', '__return_false' );

1	add_filter( 'use_default_gallery_style', '__return_false' );

Showing Or Hiding Widgets On Specific WordPress Pages

March 20, 2019 By Editorial Staff in WordPress No Comments Tags: Code, Code Snippet, Snippet, WordPress, WordPress Snippet, WordPress Snippets

The following snippet will let you show or hide widgets on specific WordPress pages.

add_filter( 'widget_display_callback', 'hide_widget_pages', 10, 3 );
function hide_widget_pages( $instance, $widget, $args ) {
  if ( $widget-&gt;id_base == 'pages' ) { // change 'pages' to widget name
     if ( !is_page( 'contact' ) ) {    // change page name
         return false;
     }
  }
}

add_filter( 'widget_display_callback', 'hide_widget_pages', 10, 3 );

function hide_widget_pages( $instance, $widget, $args ) {

if ( $widget->id_base == 'pages' ) { // change 'pages' to widget name

if ( !is_page( 'contact' ) ) { // change page name

return false;

}

Snippet Source/Credit: WPSnipp

Removing Image Sizes From Media Gallery In WordPress

March 18, 2019 By Editorial Staff in Featured, WordPress No Comments Tags: Code, Code Snippet, Snippet, WordPress, WordPress Snippet, WordPress Snippets

The following snippet will let you remove image sizes from media gallery in WordPress.

function wps_remove_image_size($sizes) {
                unset( $sizes['small'] );
                unset( $sizes['medium'] );
                unset( $sizes['large'] );
                return $sizes;
        }
        add_filter('image_size_names_choose', 'wps_remove_image_size');

function wps_remove_image_size($sizes) {

unset( $sizes['small'] );

unset( $sizes['medium'] );

unset( $sizes['large'] );

return $sizes;

}

add_filter('image_size_names_choose', 'wps_remove_image_size');

Snippet Source/Credit: WPSnipp

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