اضافه کردن دکمه لایک به پست ها و نظرات وردپرس بدون پلاگین

ابتدا کد زیر را به فایل functions.php پوسته اضافه کنید :

//like post Ariapadweb 
/*
Name:  WordPress Post Like System
Description:  A simple and efficient post like system for WordPress.
Version:      0.5.2
Author:       Jon Masterson
Author URI:   http://jonmasterson.com/
License:
Copyright (C) 2015 Jon Masterson
*/

/**
 * Register the stylesheets for the public-facing side of the site.
 * @since    0.5
 */
add_action('wp_enqueue_scripts', 'sl_enqueue_scripts');
function sl_enqueue_scripts()
{
    wp_enqueue_script('simple-likes-public-js', get_template_directory_uri() . '/js/simple-likes-public.js', array('jquery'), '0.5', false);
    wp_localize_script('simple-likes-public-js', 'simpleLikes', array(
        'ajaxurl' => admin_url('admin-ajax.php'),
        'like' => __('محبوب', 'YourThemeTextDomain'),
        'unlike' => __('متنفر', 'YourThemeTextDomain')
    ));
}

/**
 * Processes like/unlike
 * @since    0.5
 */
add_action('wp_ajax_nopriv_process_simple_like', 'process_simple_like');
add_action('wp_ajax_process_simple_like', 'process_simple_like');
function process_simple_like()
{
    // Security
    $nonce = isset($_REQUEST['nonce']) ? sanitize_text_field($_REQUEST['nonce']) : 0;
    if (!wp_verify_nonce($nonce, 'simple-likes-nonce')) {
        exit(__('Not permitted', 'YourThemeTextDomain'));
    }
    // Test if javascript is disabled
    $disabled = (isset($_REQUEST['disabled']) && $_REQUEST['disabled'] == true) ? true : false;
    // Test if this is a comment
    $is_comment = (isset($_REQUEST['is_comment']) && $_REQUEST['is_comment'] == 1) ? 1 : 0;
    // Base variables
    $post_id = (isset($_REQUEST['post_id']) && is_numeric($_REQUEST['post_id'])) ? $_REQUEST['post_id'] : '';
    $result = array();
    $post_users = NULL;
    $like_count = 0;
    // Get plugin options
    if ($post_id != '') {
        $count = ($is_comment == 1) ? get_comment_meta($post_id, "_comment_like_count", true) : get_post_meta($post_id, "_post_like_count", true); // like count
        $count = (isset($count) && is_numeric($count)) ? $count : 0;
        if (!already_liked($post_id, $is_comment)) { // Like the post
            if (is_user_logged_in()) { // user is logged in
                $user_id = get_current_user_id();
                $post_users = post_user_likes($user_id, $post_id, $is_comment);
                if ($is_comment == 1) {
                    // Update User & Comment
                    $user_like_count = get_user_option("_comment_like_count", $user_id);
                    $user_like_count = (isset($user_like_count) && is_numeric($user_like_count)) ? $user_like_count : 0;
                    update_user_option($user_id, "_comment_like_count", ++$user_like_count);
                    if ($post_users) {
                        update_comment_meta($post_id, "_user_comment_liked", $post_users);
                    }
                } else {
                    // Update User & Post
                    $user_like_count = get_user_option("_user_like_count", $user_id);
                    $user_like_count = (isset($user_like_count) && is_numeric($user_like_count)) ? $user_like_count : 0;
                    update_user_option($user_id, "_user_like_count", ++$user_like_count);
                    if ($post_users) {
                        update_post_meta($post_id, "_user_liked", $post_users);
                    }
                }
            } else { // user is anonymous
                $user_ip = sl_get_ip();
                $post_users = post_ip_likes($user_ip, $post_id, $is_comment);
                // Update Post
                if ($post_users) {
                    if ($is_comment == 1) {
                        update_comment_meta($post_id, "_user_comment_IP", $post_users);
                    } else {
                        update_post_meta($post_id, "_user_IP", $post_users);
                    }
                }
            }
            $like_count = ++$count;
            $response['status'] = "liked";
            $response['icon'] = get_liked_icon();
        } else { // Unlike the post
            if (is_user_logged_in()) { // user is logged in
                $user_id = get_current_user_id();
                $post_users = post_user_likes($user_id, $post_id, $is_comment);
                // Update User
                if ($is_comment == 1) {
                    $user_like_count = get_user_option("_comment_like_count", $user_id);
                    $user_like_count = (isset($user_like_count) && is_numeric($user_like_count)) ? $user_like_count : 0;
                    if ($user_like_count > 0) {
                        update_user_option($user_id, "_comment_like_count", --$user_like_count);
                    }
                } else {
                    $user_like_count = get_user_option("_user_like_count", $user_id);
                    $user_like_count = (isset($user_like_count) && is_numeric($user_like_count)) ? $user_like_count : 0;
                    if ($user_like_count > 0) {
                        update_user_option($user_id, '_user_like_count', --$user_like_count);
                    }
                }
                // Update Post
                if ($post_users) {
                    $uid_key = array_search($user_id, $post_users);
                    unset($post_users[$uid_key]);
                    if ($is_comment == 1) {
                        update_comment_meta($post_id, "_user_comment_liked", $post_users);
                    } else {
                        update_post_meta($post_id, "_user_liked", $post_users);
                    }
                }
            } else { // user is anonymous
                $user_ip = sl_get_ip();
                $post_users = post_ip_likes($user_ip, $post_id, $is_comment);
                // Update Post
                if ($post_users) {
                    $uip_key = array_search($user_ip, $post_users);
                    unset($post_users[$uip_key]);
                    if ($is_comment == 1) {
                        update_comment_meta($post_id, "_user_comment_IP", $post_users);
                    } else {
                        update_post_meta($post_id, "_user_IP", $post_users);
                    }
                }
            }
            $like_count = ($count > 0) ? --$count : 0; // Prevent negative number
            $response['status'] = "unliked";
            $response['icon'] = get_unliked_icon();
        }
        if ($is_comment == 1) {
            update_comment_meta($post_id, "_comment_like_count", $like_count);
            update_comment_meta($post_id, "_comment_like_modified", date('Y-m-d H:i:s'));
        } else {
            update_post_meta($post_id, "_post_like_count", $like_count);
            update_post_meta($post_id, "_post_like_modified", date('Y-m-d H:i:s'));
        }
        $response['count'] = get_like_count($like_count);
        $response['testing'] = $is_comment;
        if ($disabled == true) {
            if ($is_comment == 1) {
                wp_redirect(get_permalink(get_the_ID()));
                exit();
            } else {
                wp_redirect(get_permalink($post_id));
                exit();
            }
        } else {
            wp_send_json($response);
        }
    }
}

/**
 * Utility to test if the post is already liked
 * @since    0.5
 */
function already_liked($post_id, $is_comment)
{
    $post_users = NULL;
    $user_id = NULL;
    if (is_user_logged_in()) { // user is logged in
        $user_id = get_current_user_id();
        $post_meta_users = ($is_comment == 1) ? get_comment_meta($post_id, "_user_comment_liked") : get_post_meta($post_id, "_user_liked");
        if (count($post_meta_users) != 0) {
            $post_users = $post_meta_users[0];
        }
    } else { // user is anonymous
        $user_id = sl_get_ip();
        $post_meta_users = ($is_comment == 1) ? get_comment_meta($post_id, "_user_comment_IP") : get_post_meta($post_id, "_user_IP");
        if (count($post_meta_users) != 0) { // meta exists, set up values
            $post_users = $post_meta_users[0];
        }
    }
    if (is_array($post_users) && in_array($user_id, $post_users)) {
        return true;
    } else {
        return false;
    }
} // already_liked()

/**
 * Output the like button
 * @since    0.5
 */
function get_simple_likes_button($post_id, $is_comment = NULL)
{
    $is_comment = (NULL == $is_comment) ? 0 : 1;
    $output = '';
    $nonce = wp_create_nonce('simple-likes-nonce'); // Security
    if ($is_comment == 1) {
        $post_id_class = esc_attr(' sl-comment-button-' . $post_id);
        $comment_class = esc_attr(' sl-comment');
        $like_count = get_comment_meta($post_id, "_comment_like_count", true);
        $like_count = (isset($like_count) && is_numeric($like_count)) ? $like_count : 0;
    } else {
        $post_id_class = esc_attr(' sl-button-' . $post_id);
        $comment_class = esc_attr('');
        $like_count = get_post_meta($post_id, "_post_like_count", true);
        $like_count = (isset($like_count) && is_numeric($like_count)) ? $like_count : 0;
    }
    $count = get_like_count($like_count);
    $icon_empty = get_unliked_icon();
    $icon_full = get_liked_icon();
    // Loader
    $loader = '<span id="sl-loader"></span>';
    // Liked/Unliked Variables
    if (already_liked($post_id, $is_comment)) {
        $class = esc_attr(' liked');
        $title = __('Unlike', 'YourThemeTextDomain');
        $icon = $icon_full;
    } else {
        $class = '';
        $title = __('Like', 'YourThemeTextDomain');
        $icon = $icon_empty;
    }
    $output = '<span class="sl-wrapper"><a href="' . admin_url('admin-ajax.php?action=process_simple_like' . '&post_id=' . $post_id . '&nonce=' . $nonce . '&is_comment=' . $is_comment . '&disabled=true') . '" class="sl-button' . $post_id_class . $class . $comment_class . '" data-nonce="' . $nonce . '" data-post-id="' . $post_id . '" data-iscomment="' . $is_comment . '" title="' . $title . '">' . $icon . $count . '</a>' . $loader . '</span>';
    return $output;
} // get_simple_likes_button()

/**
 * Processes shortcode to manually add the button to posts
 * @since    0.5
 */
add_shortcode('jmliker', 'sl_shortcode');
function sl_shortcode()
{
    return get_simple_likes_button(get_the_ID(), 0);
} // shortcode()

/**
 * Utility retrieves post meta user likes (user id array),
 * then adds new user id to retrieved array
 * @since    0.5
 */
function post_user_likes($user_id, $post_id, $is_comment)
{
    $post_users = '';
    $post_meta_users = ($is_comment == 1) ? get_comment_meta($post_id, "_user_comment_liked") : get_post_meta($post_id, "_user_liked");
    if (count($post_meta_users) != 0) {
        $post_users = $post_meta_users[0];
    }
    if (!is_array($post_users)) {
        $post_users = array();
    }
    if (!in_array($user_id, $post_users)) {
        $post_users['user-' . $user_id] = $user_id;
    }
    return $post_users;
} // post_user_likes()

/**
 * Utility retrieves post meta ip likes (ip array),
 * then adds new ip to retrieved array
 * @since    0.5
 */
function post_ip_likes($user_ip, $post_id, $is_comment)
{
    $post_users = '';
    $post_meta_users = ($is_comment == 1) ? get_comment_meta($post_id, "_user_comment_IP") : get_post_meta($post_id, "_user_IP");
    // Retrieve post information
    if (count($post_meta_users) != 0) {
        $post_users = $post_meta_users[0];
    }
    if (!is_array($post_users)) {
        $post_users = array();
    }
    if (!in_array($user_ip, $post_users)) {
        $post_users['ip-' . $user_ip] = $user_ip;
    }
    return $post_users;
} // post_ip_likes()

/**
 * Utility to retrieve IP address
 * @since    0.5
 */
function sl_get_ip()
{
    if (isset($_SERVER['HTTP_CLIENT_IP']) && !empty($_SERVER['HTTP_CLIENT_IP'])) {
        $ip = $_SERVER['HTTP_CLIENT_IP'];
    } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
    } else {
        $ip = (isset($_SERVER['REMOTE_ADDR'])) ? $_SERVER['REMOTE_ADDR'] : '0.0.0.0';
    }
    $ip = filter_var($ip, FILTER_VALIDATE_IP);
    $ip = ($ip === false) ? '0.0.0.0' : $ip;
    return $ip;
} // sl_get_ip()

/**
 * Utility returns the button icon for "like" action
 * @since    0.5
 */
function get_liked_icon()
{
    /* If already using Font Awesome with your theme, replace svg with: <i class="fa fa-heart"></i> */
    $icon = '<span class="sl-icon"><svg role="img" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0" y="0" viewBox="0 0 128 128" enable-background="new 0 0 128 128" xml:space="preserve"><path id="heart-full" d="M124 20.4C111.5-7 73.7-4.8 64 19 54.3-4.9 16.5-7 4 20.4c-14.7 32.3 19.4 63 60 107.1C104.6 83.4 138.7 52.7 124 20.4z"/>♥</svg></span>';
    return $icon;
} // get_liked_icon()

/**
 * Utility returns the button icon for "unlike" action
 * @since    0.5
 */
function get_unliked_icon()
{
    /* If already using Font Awesome with your theme, replace svg with: <i class="fa fa-heart-o"></i> */
    $icon = '<span class="sl-icon"><svg role="img" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0" y="0" viewBox="0 0 128 128" enable-background="new 0 0 128 128" xml:space="preserve"><path id="heart" d="M64 127.5C17.1 79.9 3.9 62.3 1 44.4c-3.5-22 12.2-43.9 36.7-43.9 10.5 0 20 4.2 26.4 11.2 6.3-7 15.9-11.2 26.4-11.2 24.3 0 40.2 21.8 36.7 43.9C124.2 62 111.9 78.9 64 127.5zM37.6 13.4c-9.9 0-18.2 5.2-22.3 13.8C5 49.5 28.4 72 64 109.2c35.7-37.3 59-59.8 48.6-82 -4.1-8.7-12.4-13.8-22.3-13.8 -15.9 0-22.7 13-26.4 19.2C60.6 26.8 54.4 13.4 37.6 13.4z"/>♥</svg></span>';
    return $icon;
} // get_unliked_icon()

/**
 * Utility function to format the button count,
 * appending "K" if one thousand or greater,
 * "M" if one million or greater,
 * and "B" if one billion or greater (unlikely).
 * $precision = how many decimal points to display (1.25K)
 * @since    0.5
 */
function sl_format_count($number)
{
    $precision = 2;
    if ($number >= 1000 && $number < 1000000) {
        $formatted = number_format($number / 1000, $precision) . 'K';
    } else if ($number >= 1000000 && $number < 1000000000) {
        $formatted = number_format($number / 1000000, $precision) . 'M';
    } else if ($number >= 1000000000) {
        $formatted = number_format($number / 1000000000, $precision) . 'B';
    } else {
        $formatted = $number; // Number is less than 1000
    }
    $formatted = str_replace('.00', '', $formatted);
    return $formatted;
} // sl_format_count()

/**
 * Utility retrieves count plus count options,
 * returns appropriate format based on options
 * @since    0.5
 */
function get_like_count($like_count)
{
    $like_text = __('محبوب', 'YourThemeTextDomain');
    if (is_numeric($like_count) && $like_count > 0) {
        $number = sl_format_count($like_count);
    } else {
        $number = $like_text;
    }
    $count = '<span class="sl-count">' . $number . '</span>';
    return $count;
} // get_like_count()

// User Profile List
add_action('show_user_profile', 'show_user_likes');
add_action('edit_user_profile', 'show_user_likes');
function show_user_likes($user)
{ ?>
    <table class="form-table">
        <tr>
            <th><label for="user_likes"><?php _e('You Like:', 'YourThemeTextDomain'); ?></label></th>
            <td>
                <?php
                $types = get_post_types(array('public' => true));
                $args = array(
                    'numberposts' => -1,
                    'post_type' => $types,
                    'meta_query' => array(
                        array(
                            'key' => '_user_liked',
                            'value' => $user->ID,
                            'compare' => 'LIKE'
                        )
                    ));
                $sep = '';
                $like_query = new WP_Query($args);
                if ($like_query->have_posts()) : ?>
                    <p>
                        <?php while ($like_query->have_posts()) : $like_query->the_post();
                            echo $sep; ?><a href="<?php the_permalink(); ?>"
                                            title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a>
                            <?php
                            $sep = ' · ';
                        endwhile;
                        ?>
                    </p>
                <?php else : ?>
                    <p><?php _e('You do not like anything yet.', 'YourThemeTextDomain'); ?></p>
                    <?php
                endif;
                wp_reset_postdata();
                ?>
            </td>
        </tr>
    </table>
<?php } // show_user_likes()

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//like post Ariapadweb

Name: WordPress Post Like System

Description: A simple and efficient post like system for WordPress.

Version: 0.5.2

Author: Jon Masterson

Author URI: http://jonmasterson.com/

License:

/**

* Register the stylesheets for the public-facing side of the site.

* @since 0.5

add_action('wp_enqueue_scripts', 'sl_enqueue_scripts');

function sl_enqueue_scripts()

{

wp_enqueue_script('simple-likes-public-js', get_template_directory_uri() . '/js/simple-likes-public.js', array('jquery'), '0.5', false);

wp_localize_script('simple-likes-public-js', 'simpleLikes', array(

'ajaxurl' => admin_url('admin-ajax.php'),

'like' => __('محبوب', 'YourThemeTextDomain'),

'unlike' => __('متنفر', 'YourThemeTextDomain')

));

}

/**

* Processes like/unlike

* @since 0.5

add_action('wp_ajax_nopriv_process_simple_like', 'process_simple_like');

add_action('wp_ajax_process_simple_like', 'process_simple_like');

function process_simple_like()

{

// Security

$nonce = isset($_REQUEST['nonce']) ? sanitize_text_field($_REQUEST['nonce']) : 0;

if (!wp_verify_nonce($nonce, 'simple-likes-nonce')) {

exit(__('Not permitted', 'YourThemeTextDomain'));

}

// Test if javascript is disabled

$disabled = (isset($_REQUEST['disabled']) && $_REQUEST['disabled'] == true) ? true : false;

// Test if this is a comment

$is_comment = (isset($_REQUEST['is_comment']) && $_REQUEST['is_comment'] == 1) ? 1 : 0;

// Base variables

$post_id = (isset($_REQUEST['post_id']) && is_numeric($_REQUEST['post_id'])) ? $_REQUEST['post_id'] : '';

$result = array();

$post_users = NULL;

$like_count = 0;

// Get plugin options

if ($post_id != '') {

$count = ($is_comment == 1) ? get_comment_meta($post_id, "_comment_like_count", true) : get_post_meta($post_id, "_post_like_count", true); // like count

$count = (isset($count) && is_numeric($count)) ? $count : 0;

if (!already_liked($post_id, $is_comment)) { // Like the post

if (is_user_logged_in()) { // user is logged in

$user_id = get_current_user_id();

$post_users = post_user_likes($user_id, $post_id, $is_comment);

if ($is_comment == 1) {

// Update User & Comment

$user_like_count = get_user_option("_comment_like_count", $user_id);

$user_like_count = (isset($user_like_count) && is_numeric($user_like_count)) ? $user_like_count : 0;

update_user_option($user_id, "_comment_like_count", ++$user_like_count);

if ($post_users) {

update_comment_meta($post_id, "_user_comment_liked", $post_users);

}

} else {

// Update User & Post

$user_like_count = get_user_option("_user_like_count", $user_id);

$user_like_count = (isset($user_like_count) && is_numeric($user_like_count)) ? $user_like_count : 0;

update_user_option($user_id, "_user_like_count", ++$user_like_count);

if ($post_users) {

update_post_meta($post_id, "_user_liked", $post_users);

}

} else { // user is anonymous

$user_ip = sl_get_ip();

$post_users = post_ip_likes($user_ip, $post_id, $is_comment);

// Update Post

if ($post_users) {

if ($is_comment == 1) {

update_comment_meta($post_id, "_user_comment_IP", $post_users);

} else {

update_post_meta($post_id, "_user_IP", $post_users);

}

$like_count = ++$count;

$response['status'] = "liked";

$response['icon'] = get_liked_icon();

} else { // Unlike the post

if (is_user_logged_in()) { // user is logged in

$user_id = get_current_user_id();

$post_users = post_user_likes($user_id, $post_id, $is_comment);

// Update User

if ($is_comment == 1) {

$user_like_count = get_user_option("_comment_like_count", $user_id);

$user_like_count = (isset($user_like_count) && is_numeric($user_like_count)) ? $user_like_count : 0;

if ($user_like_count > 0) {

update_user_option($user_id, "_comment_like_count", --$user_like_count);

}

} else {

$user_like_count = get_user_option("_user_like_count", $user_id);

$user_like_count = (isset($user_like_count) && is_numeric($user_like_count)) ? $user_like_count : 0;

if ($user_like_count > 0) {

update_user_option($user_id, '_user_like_count', --$user_like_count);

}

// Update Post

if ($post_users) {

$uid_key = array_search($user_id, $post_users);

unset($post_users[$uid_key]);

if ($is_comment == 1) {

update_comment_meta($post_id, "_user_comment_liked", $post_users);

} else {

update_post_meta($post_id, "_user_liked", $post_users);

}

} else { // user is anonymous

$user_ip = sl_get_ip();

$post_users = post_ip_likes($user_ip, $post_id, $is_comment);

// Update Post

if ($post_users) {

$uip_key = array_search($user_ip, $post_users);

unset($post_users[$uip_key]);

if ($is_comment == 1) {

update_comment_meta($post_id, "_user_comment_IP", $post_users);

} else {

update_post_meta($post_id, "_user_IP", $post_users);

}

$like_count = ($count > 0) ? --$count : 0; // Prevent negative number

$response['status'] = "unliked";

$response['icon'] = get_unliked_icon();

}

if ($is_comment == 1) {

update_comment_meta($post_id, "_comment_like_count", $like_count);

update_comment_meta($post_id, "_comment_like_modified", date('Y-m-d H:i:s'));

} else {

update_post_meta($post_id, "_post_like_count", $like_count);

update_post_meta($post_id, "_post_like_modified", date('Y-m-d H:i:s'));

}

$response['count'] = get_like_count($like_count);

$response['testing'] = $is_comment;

if ($disabled == true) {

if ($is_comment == 1) {

wp_redirect(get_permalink(get_the_ID()));

exit();

} else {

wp_redirect(get_permalink($post_id));

exit();

}

} else {

wp_send_json($response);

}

/**

* Utility to test if the post is already liked

* @since 0.5

function already_liked($post_id, $is_comment)

{

$post_users = NULL;

$user_id = NULL;

if (is_user_logged_in()) { // user is logged in

$user_id = get_current_user_id();

$post_meta_users = ($is_comment == 1) ? get_comment_meta($post_id, "_user_comment_liked") : get_post_meta($post_id, "_user_liked");

if (count($post_meta_users) != 0) {

$post_users = $post_meta_users[0];

}

} else { // user is anonymous

$user_id = sl_get_ip();

$post_meta_users = ($is_comment == 1) ? get_comment_meta($post_id, "_user_comment_IP") : get_post_meta($post_id, "_user_IP");

if (count($post_meta_users) != 0) { // meta exists, set up values

$post_users = $post_meta_users[0];

}

if (is_array($post_users) && in_array($user_id, $post_users)) {

return true;

} else {

return false;

}

} // already_liked()

/**

* Output the like button

* @since 0.5

function get_simple_likes_button($post_id, $is_comment = NULL)

{

$is_comment = (NULL == $is_comment) ? 0 : 1;

$output = '';

$nonce = wp_create_nonce('simple-likes-nonce'); // Security

if ($is_comment == 1) {

$post_id_class = esc_attr(' sl-comment-button-' . $post_id);

$comment_class = esc_attr(' sl-comment');

$like_count = get_comment_meta($post_id, "_comment_like_count", true);

$like_count = (isset($like_count) && is_numeric($like_count)) ? $like_count : 0;

} else {

$post_id_class = esc_attr(' sl-button-' . $post_id);

$comment_class = esc_attr('');

$like_count = get_post_meta($post_id, "_post_like_count", true);

$like_count = (isset($like_count) && is_numeric($like_count)) ? $like_count : 0;

}

$count = get_like_count($like_count);

$icon_empty = get_unliked_icon();

$icon_full = get_liked_icon();

// Loader

$loader = '<span id="sl-loader"></span>';

// Liked/Unliked Variables

if (already_liked($post_id, $is_comment)) {

$class = esc_attr(' liked');

$title = __('Unlike', 'YourThemeTextDomain');

$icon = $icon_full;

} else {

$class = '';

$title = __('Like', 'YourThemeTextDomain');

$icon = $icon_empty;

}

$output = '<span class="sl-wrapper"><a href="' . admin_url('admin-ajax.php?action=process_simple_like' . '&post_id=' . $post_id . '&nonce=' . $nonce . '&is_comment=' . $is_comment . '&disabled=true') . '" class="sl-button' . $post_id_class . $class . $comment_class . '" data-nonce="' . $nonce . '" data-post-id="' . $post_id . '" data-iscomment="' . $is_comment . '" title="' . $title . '">' . $icon . $count . '</a>' . $loader . '</span>';

return $output;

} // get_simple_likes_button()

/**

* Processes shortcode to manually add the button to posts

* @since 0.5

add_shortcode('jmliker', 'sl_shortcode');

function sl_shortcode()

{

return get_simple_likes_button(get_the_ID(), 0);

} // shortcode()

/**

* Utility retrieves post meta user likes (user id array),

* then adds new user id to retrieved array

* @since 0.5

function post_user_likes($user_id, $post_id, $is_comment)

{

$post_users = '';

$post_meta_users = ($is_comment == 1) ? get_comment_meta($post_id, "_user_comment_liked") : get_post_meta($post_id, "_user_liked");

if (count($post_meta_users) != 0) {

$post_users = $post_meta_users[0];

}

if (!is_array($post_users)) {

$post_users = array();

}

if (!in_array($user_id, $post_users)) {

$post_users['user-' . $user_id] = $user_id;

}

return $post_users;

} // post_user_likes()

/**

* Utility retrieves post meta ip likes (ip array),

* then adds new ip to retrieved array

* @since 0.5

function post_ip_likes($user_ip, $post_id, $is_comment)

{

$post_users = '';

$post_meta_users = ($is_comment == 1) ? get_comment_meta($post_id, "_user_comment_IP") : get_post_meta($post_id, "_user_IP");

// Retrieve post information

if (count($post_meta_users) != 0) {

$post_users = $post_meta_users[0];

}

if (!is_array($post_users)) {

$post_users = array();

}

if (!in_array($user_ip, $post_users)) {

$post_users['ip-' . $user_ip] = $user_ip;

}

return $post_users;

} // post_ip_likes()

/**

* Utility to retrieve IP address

* @since 0.5

function sl_get_ip()

{

if (isset($_SERVER['HTTP_CLIENT_IP']) && !empty($_SERVER['HTTP_CLIENT_IP'])) {

$ip = $_SERVER['HTTP_CLIENT_IP'];

} elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {

$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];

} else {

$ip = (isset($_SERVER['REMOTE_ADDR'])) ? $_SERVER['REMOTE_ADDR'] : '0.0.0.0';

}

$ip = filter_var($ip, FILTER_VALIDATE_IP);

$ip = ($ip === false) ? '0.0.0.0' : $ip;

return $ip;

} // sl_get_ip()

/**

* Utility returns the button icon for "like" action

* @since 0.5

function get_liked_icon()

{

/* If already using Font Awesome with your theme, replace svg with: <i class="fa fa-heart"></i> */

return $icon;

} // get_liked_icon()

/**

* Utility returns the button icon for "unlike" action

* @since 0.5

function get_unliked_icon()

{

/* If already using Font Awesome with your theme, replace svg with: <i class="fa fa-heart-o"></i> */

$icon = '<span class="sl-icon"><svg role="img" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0" y="0" viewBox="0 0 128 128" enable-background="new 0 0 128 128" xml:space="preserve"><path id="heart" d="M64 127.5C17.1 79.9 3.9 62.3 1 44.4c-3.5-22 12.2-43.9 36.7-43.9 10.5 0 20 4.2 26.4 11.2 6.3-7 15.9-11.2 26.4-11.2 24.3 0 40.2 21.8 36.7 43.9C124.2 62 111.9 78.9 64 127.5zM37.6 13.4c-9.9 0-18.2 5.2-22.3 13.8C5 49.5 28.4 72 64 109.2c35.7-37.3 59-59.8 48.6-82 -4.1-8.7-12.4-13.8-22.3-13.8 -15.9 0-22.7 13-26.4 19.2C60.6 26.8 54.4 13.4 37.6 13.4z"/>♥</svg></span>';

return $icon;

} // get_unliked_icon()

/**

* Utility function to format the button count,

* appending "K" if one thousand or greater,

* "M" if one million or greater,

* and "B" if one billion or greater (unlikely).

* $precision = how many decimal points to display (1.25K)

* @since 0.5

function sl_format_count($number)

{

$precision = 2;

if ($number >= 1000 && $number < 1000000) {

$formatted = number_format($number / 1000, $precision) . 'K';

} else if ($number >= 1000000 && $number < 1000000000) {

$formatted = number_format($number / 1000000, $precision) . 'M';

} else if ($number >= 1000000000) {

$formatted = number_format($number / 1000000000, $precision) . 'B';

} else {

$formatted = $number; // Number is less than 1000

}

$formatted = str_replace('.00', '', $formatted);

return $formatted;

} // sl_format_count()

/**

* Utility retrieves count plus count options,

* returns appropriate format based on options

* @since 0.5

function get_like_count($like_count)

{

$like_text = __('محبوب', 'YourThemeTextDomain');

if (is_numeric($like_count) && $like_count > 0) {

$number = sl_format_count($like_count);

} else {

$number = $like_text;

}

$count = '<span class="sl-count">' . $number . '</span>';

return $count;

} // get_like_count()

// User Profile List

add_action('show_user_profile', 'show_user_likes');

add_action('edit_user_profile', 'show_user_likes');

function show_user_likes($user)

{ ?>

<tr>

<td>

<?php

$types = get_post_types(array('public' => true));

$args = array(

'numberposts' => -1,

'post_type' => $types,

'meta_query' => array(

array(

'key' => '_user_liked',

'value' => $user->ID,

'compare' => 'LIKE'

)

));

$sep = '';

$like_query = new WP_Query($args);

if ($like_query->have_posts()) : ?>

<p>

<?php while ($like_query->have_posts()) : $like_query->the_post();

echo $sep; ?><a href="<?php the_permalink(); ?>"

title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a>

<?php

$sep = ' · ';

endwhile;

</p>

<?php else : ?>

<?php

endif;

wp_reset_postdata();

</td>

</tr>

</table>

<?php } // show_user_likes()

یک فایل با نام simple-likes-public.js در روت اصلی پوسته درست کنید و سپس محتویات زیر را در آن قرار دهید :

(function( $ ) {
    'use strict';
    $(document).on('click', '.sl-button', function() {
        var button = $(this);
        var post_id = button.attr('data-post-id');
        var security = button.attr('data-nonce');
        var iscomment = button.attr('data-iscomment');
        var allbuttons;
        if ( iscomment === '1' ) { /* Comments can have same id */
            allbuttons = $('.sl-comment-button-'+post_id);
        } else {
            allbuttons = $('.sl-button-'+post_id);
        }
        var loader = allbuttons.next('#sl-loader');
        if (post_id !== '') {
            $.ajax({
                type: 'POST',
                url: simpleLikes.ajaxurl,
                data : {
                    action : 'process_simple_like',
                    post_id : post_id,
                    nonce : security,
                    is_comment : iscomment,
                },
                beforeSend:function(){
                    loader.html(' <div class="loader">Loading...</div>');
                },
                success: function(response){
                    var icon = response.icon;
                    var count = response.count;
                    allbuttons.html(icon+count);
                    if(response.status === 'unliked') {
                        var like_text = simpleLikes.like;
                        allbuttons.prop('title', like_text);
                        allbuttons.removeClass('liked');
                    } else {
                        var unlike_text = simpleLikes.unlike;
                        allbuttons.prop('title', unlike_text);
                        allbuttons.addClass('liked');
                    }
                    loader.empty();
                }
            });

        }
        return false;
    });
})( jQuery );

(function( $ ) {

'use strict';

$(document).on('click', '.sl-button', function() {

var button = $(this);

var post_id = button.attr('data-post-id');

var security = button.attr('data-nonce');

var iscomment = button.attr('data-iscomment');

var allbuttons;

if ( iscomment === '1' ) { /* Comments can have same id */

allbuttons = $('.sl-comment-button-'+post_id);

} else {

allbuttons = $('.sl-button-'+post_id);

}

var loader = allbuttons.next('#sl-loader');

if (post_id !== '') {

$.ajax({

type: 'POST',

url: simpleLikes.ajaxurl,

data : {

action : 'process_simple_like',

post_id : post_id,

nonce : security,

is_comment : iscomment,

beforeSend:function(){

loader.html(' <div class="loader">Loading...</div>');

success: function(response){

var icon = response.icon;

var count = response.count;

allbuttons.html(icon+count);

if(response.status === 'unliked') {

var like_text = simpleLikes.like;

allbuttons.prop('title', like_text);

allbuttons.removeClass('liked');

} else {

var unlike_text = simpleLikes.unlike;

allbuttons.prop('title', unlike_text);

allbuttons.addClass('liked');

}

loader.empty();

}

});

}

return false;

});

})( jQuery );

سپس کد زیر را قبل از بسته شدن تگ head قرار دهید :

    <script type="text/javascript" src="<?php bloginfo('template_directory'); ?>/simple-likes-public.js"></script>

1	<script type="text/javascript" src="<?php bloginfo('template_directory'); ?>/simple-likes-public.js"></script>

برای استایل دادن به دکمه لایک نیز کد زیر را به فایل style.css قالب در انتهای بقیه کد ها قرار بدهید :

/* Wrapper */
.sl-wrapper a {
    border-bottom: 0 !important;
    text-decoration: none !important;
}
.sl-button {
	padding: 0.375em 0.625em;
	font-size: 18px;
	line-height: 1;
	font-weight: normal;
	
}
/* Colors */
a.liked {
    color: #da1b1b;
}
a.liked:hover,
a.liked:active,
a.liked:focus {
    color: #666666;
}
a.liked span.sl-count,
.sl-count {
    color: #666666;
}

/* Icon */
.sl-icon {
    margin-right: 0.3125em;
    font-family: 'Arial Unicode MS', Arial, sans-serif;
    vertical-align: middle;
}
.sl-icon svg {
    fill: currentColor;
    width: 1em;
    height: 1em;
}
.sl-icon svg:after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left:0;
}

/* Count */
.sl-count {
    font-size: 0.625em;
    font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
    text-transform: uppercase;
    vertical-align: middle;
}

/* Loader */
.loader,
.loader:before,
.loader:after {
    background: rgba(0, 0, 0, 0.2);
    -webkit-animation: load1 1s infinite ease-in-out;
    animation: load1 1s infinite ease-in-out;
    width: .2em;
    height: .6em;
}
.loader:before,
.loader:after {
    position: absolute;
    top: 0;
    content: '';
}
.loader:before {
    left: -.375em;
    -webkit-animation-delay: -0.32s;
    animation-delay: -0.32s;
}
.loader {
    text-indent: -9999em;
    display: inline-block;
    position: relative;
    vertical-align: middle;
    font-size: 1em;
    -webkit-transform: translateZ(0);
    -ms-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-animation-delay: -0.16s;
    animation-delay: -0.16s;
}
.loader:after {
    left: .375em;
}
@-webkit-keyframes load1 {
    0%,
    80%,
    100% {
        box-shadow: 0 0 rgba(0, 0, 0, 0.2);
        height: .6em;
    }
    40% {
        box-shadow: 0 -.3em rgba(0, 0, 0, 0.2);
        height: 1em;
    }
}
@keyframes load1 {
    0%,
    80%,
    100% {
        box-shadow: 0 0 rgba(0, 0, 0, 0.2);
        height: .6em;
    }
    40% {
        box-shadow: 0 -.3em rgba(0, 0, 0, 0.2);
        height: 1em;
    }
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

/* Wrapper */

.sl-wrapper a {

border-bottom: 0 !important;

text-decoration: none !important;

}

.sl-button {

padding: 0.375em 0.625em;

font-size: 18px;

line-height: 1;

font-weight: normal;

}

/* Colors */

a.liked {

color: #da1b1b;

}

a.liked:hover,

a.liked:active,

a.liked:focus {

color: #666666;

}

a.liked span.sl-count,

.sl-count {

color: #666666;

}

/* Icon */

.sl-icon {

margin-right: 0.3125em;

font-family: 'Arial Unicode MS', Arial, sans-serif;

vertical-align: middle;

}

.sl-icon svg {

fill: currentColor;

width: 1em;

height: 1em;

}

.sl-icon svg:after {

content: "";

position: absolute;

top: 0;

right: 0;

bottom: 0;

left:0;

}

/* Count */

.sl-count {

font-size: 0.625em;

font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;

text-transform: uppercase;

vertical-align: middle;

}

/* Loader */

.loader,

.loader:before,

.loader:after {

background: rgba(0, 0, 0, 0.2);

-webkit-animation: load1 1s infinite ease-in-out;

animation: load1 1s infinite ease-in-out;

width: .2em;

height: .6em;

}

.loader:before,

.loader:after {

position: absolute;

top: 0;

content: '';

}

.loader:before {

left: -.375em;

-webkit-animation-delay: -0.32s;

animation-delay: -0.32s;

}

.loader {

text-indent: -9999em;

display: inline-block;

position: relative;

vertical-align: middle;

font-size: 1em;

-webkit-transform: translateZ(0);

-ms-transform: translateZ(0);

transform: translateZ(0);

-webkit-animation-delay: -0.16s;

animation-delay: -0.16s;

}

.loader:after {

left: .375em;

}

@-webkit-keyframes load1 {

0%,

80%,

100% {

box-shadow: 0 0 rgba(0, 0, 0, 0.2);

height: .6em;

}

40% {

box-shadow: 0 -.3em rgba(0, 0, 0, 0.2);

height: 1em;

}

@keyframes load1 {

0%,

80%,

100% {

box-shadow: 0 0 rgba(0, 0, 0, 0.2);

height: .6em;

}

40% {

box-shadow: 0 -.3em rgba(0, 0, 0, 0.2);

height: 1em;

}

خب دیگه تقریبا کار تمومه :)‌ در فایل single.php در حلقه نوشته تکه کد زیر را فراخوانی کنید .

  <?php echo get_simple_likes_button( get_the_ID() ); ?>

1	<?php echo get_simple_likes_button( get_the_ID() ); ?>

هنوز تموم نشده ! برای اضافه کردن دکمه لایک به نظرات هم تکه کد زیر استفاده کنید :

 echo get_simple_likes_button( get_comment_ID(), 1 );

1	echo get_simple_likes_button( get_comment_ID(), 1 );

بهترین و آشنایی با نسخه های PHP برای استفاده

جلوگیری از حملات (Sql injection) برای درگاه پرداخت ها و متد Post در زبان PHP

ارور warning: count(): parametern در php7.2

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