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/*
* this code goes in your theme`s functions.php file
*/

add_filter('login_errors',create_function('$a', "return null;"));
define( 'DISALLOW_FILE_EDIT', true );

function no_wordpress_errors(){
return 'Nothing to see here, move along!';
}

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/**
 * Add new rewrite rule
 */
function create_new_url_querystring() {
    add_rewrite_rule(
        'blog/([^/]*)$',
        'index.php?name=$matches[1]',
        'top'
    );
    add_rewrite_tag('%blog%','([^/]*)');

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/*
* http://blog.templatetoaster.com/15-useful-code-snippets-for-your-wordpress-site/
*/
function wp_maintenance_mode(){
  if(!current_user_can('edit_themes') || !is_user_logged_in()){
    wp_die('Maintenance, please come back soon.', 'Maintenance – please come back soon.', array('response' => '503'));
  }
}
add_action('get_header', 'wp_maintenance_mode');

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<?php 
// In folderul themes creati un folder inc daca nu-l aveti deja. 
// In acest folder creati un fisier customizer.php 
// ( el poate sa fie salvat si sub alt nume, eu doar am pus acest nume pentru ca e sugestiv).
// In interiorul acestui fisier (customizer.php) copy paste la functia prefix_customizer_register.
// prefix_ ar trebui inlocuit cu numele theme-ului vostru. Ex: bogdan_customizer_register
// La fel si textdomain-ul.


function prefix_customizer_register( $wp_customize ) {

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<?php
	// Query arguments : https://codex.wordpress.org/Class_Reference/WP_Query
	$args = array(
		'posts_per_page'=> 5,
		'orderby'	=> 'date',
		'order'		=> 'DESC',
    		'category' 	=> 'slider'
	);
	
	// create the query

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function rbpixel_customize_wc_errors( $error ) {
	if ( strpos( $error, 'Billing ' ) !== false ) {
		$error = str_replace("Billing ", "", $error);
	}
	return $error;
}
add_filter( 'woocommerce_add_error', 'rbpixel_customize_wc_errors' );

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# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

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// Add the image node to RSS feed
add_action('rss2_item', 'add_featured_image_as_rss_node');
function add_featured_image_as_rss_node() {
    global $post;
    if(has_post_thumbnail($post->ID)):
        $thumbnail = wp_get_attachment_url( get_post_thumbnail_id( $post->ID ) );
        echo("<image>{$thumbnail}</image>");
    endif;
}

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<?php

/**
 * Insert a value or key/value pair after a specific key in an array.  If key doesn't exist, value is appended
 * to the end of the array.
 *
 * @param array $array
 * @param string $key
 * @param array $new
 *

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# BLOCK PROXY VISITS
# PerishablePress.com: http://bit.ly/12k6Uo
<ifModule mod_rewrite.c>
 RewriteEngine on
 RewriteCond %{HTTP:VIA}                 !^$ [OR]
 RewriteCond %{HTTP:FORWARDED}           !^$ [OR]
 RewriteCond %{HTTP:USERAGENT_VIA}       !^$ [OR]
 RewriteCond %{HTTP:X_FORWARDED_FOR}     !^$ [OR]
 RewriteCond %{HTTP:PROXY_CONNECTION}    !^$ [OR]
 RewriteCond %{HTTP:XPROXY_CONNECTION}   !^$ [OR]