This makes the unmaintained 10 years old WordPress plugin "Linkable Title Html and Php Widget" running again with PHP 8.0 and WP version 6.4.1. Replaces outdated constructor method and some other adjustments (see comments in code). Simply replace the file in folder .../wp-content/plugins/linkable-title-html-and-php-widget/ with the same name.

linkable-title-html-and-php-widget.php

<?php
/*
Plugin Name: Linkable Title Html and Php Widget by PepLamb
Plugin URI: http://peplamb.com/linkable-title-html-and-php-widget/
Description: JT 14.10.2019: Modified to implement new object constructor method __construct() | JT 26.05.2020: Modified for some PHP notices || <a href="http://peplamb.com/linkable-title-html-and-php-widget/" target="_blank">Linkable Title Html and Php Widget</a> by <a href="http://peplamb.com/linkable-title-html-and-php-widget/" target="_blank">PepLamb</a>! Using this plugin you may have Text, HTML, Javascript, Flash and/or Php as content in this widget with linkable widget titles, so this is a plus compared to the default wordpress' text widget. This plugin is a personal open source project. Started in 2009, I have put considerable amount of hours adding, refining, tuning, fixing, maintaining the plugin with the goal to make it useful and add to Wordpress community. I need your help to achieve this. <a href='https://pledgie.com/campaigns/23211' target="_blank">Donate</a>
Version: 1.2.6.1-JT01
Author: PepLamb (mod by JT)
Author URI: http://peplamb.com/
*/
/*
 * //jt 11.10.19: Replaced outdated constructor methods with new __construct()
 * //jt 26.05.20: added further default args to call of wp_parse_args()
 * //jt 26.05.20: replaced deprecated capability value '8' with capability 'edit_theme_options'
*/
/*
    Copyright 2009-2013  PepLamb  (email : peplamb@gmail.com)

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
class LinkableTitleHtmlAndPhpWidget extends WP_Widget {

    //jt 11.10.19: Replaced outdated constructor methods with new __construct()
    //function LinkableTitleHtmlAndPhpWidget() {
    function __construct() {
        $widget_ops = array('classname' => 'widget_text', 'description' => __('Linkable Title Html and Php Widget by PepLamb'));
        $control_ops = array('width' => 400, 'height' => 350);
        //$this->WP_Widget('LinkableTitleHtmlAndPhpWidget', __('Linkable Title Html and Php Widget'), $widget_ops, $control_ops);
        WP_Widget::__construct('LinkableTitleHtmlAndPhpWidget', __('Linkable Title Html and Php Widget'), $widget_ops, $control_ops);
    }

    function widget( $args, $instance ) {
        extract($args);
        $title = apply_filters('widget_title', empty($instance['title']) ? '' : $instance['title'], $instance);
        $titleUrl = apply_filters('widget_title', empty($instance['titleUrl']) ? '' : $instance['titleUrl'], $instance);
        $titleColor = apply_filters('widget_title', empty($instance['titleColor']) ? '' : $instance['titleColor'], $instance);
        $forceTitleUnderline = $instance['forceTitleUnderline'] ? '1' : '0';
        $removeTextContentDivTag = $instance['removeTextContentDivTag'] ? '1' : '0';
        $newWindow = $instance['newWindow'] ? '1' : '0';
        $text = apply_filters( 'widget_text', $instance['text'], $instance );

        $titleStyle = ($forceTitleUnderline == '1' ? "text-decoration: underline !important;" : "");
        $titleStyle .= (strlen($titleColor) > 0 ? "color: {$titleColor};" : "");
        if(strlen($titleStyle) > 0) {
            $titleStyle = ' style="' . $titleStyle . '"';
        }

        echo $before_widget;
        if( $titleUrl && $title )
            $title = '<a href="' . $titleUrl . '"' . ($newWindow == '1'?' target="_blank"':'') . $titleStyle . ' title="'.$title.'">'.$title.'</a>';
        if ( !empty( $title ) ) { echo $before_title . $title . $after_title; } ?>
        <?php echo ($removeTextContentDivTag == '1' ? '' : '<div class="textwidget">');?><?php if($instance['filter']) { ob_start(); eval("?>$text<?php "); $output = ob_get_contents(); ob_end_clean(); echo wpautop($output); } else eval("?>".$text."<?php "); ?><?php echo ($removeTextContentDivTag == '1' ? '' : '</div>');?>
        <?php
        echo $after_widget;
    }
    
    function update( $new_instance, $old_instance ) {
        $instance = $old_instance;
        $instance['title'] = strip_tags($new_instance['title']);
        $instance['titleUrl'] = strip_tags($new_instance['titleUrl']);
        $instance['titleColor'] = $new_instance['titleColor'] ? $new_instance['titleColor'] : "";
        $instance['forceTitleUnderline'] = $new_instance['forceTitleUnderline'] ? 1 : 0;
        $instance['removeTextContentDivTag'] = $new_instance['removeTextContentDivTag'] ? 1 : 0;
        $instance['newWindow'] = $new_instance['newWindow'] ? 1 : 0;
        if ( current_user_can('unfiltered_html') )
            $instance['text'] =  $new_instance['text'];
        else
            $instance['text'] = wp_filter_post_kses( $new_instance['text'] );
        $instance['filter'] = isset($new_instance['filter']);
        return $instance;
    }

    function form( $instance ) {
        //jt 26.05.20: added further default args to call of wp_parse_args()
        $instance = wp_parse_args( (array) $instance, array( 'title' => '', 'titleUrl' => '', 'text' => '', 'titleColor' => '', 'forceTitleUnderline' => '', 'removeTextContentDivTag' => '', 'newWindow' => '' ) );
        $title = strip_tags($instance['title']);
        $titleUrl = strip_tags($instance['titleUrl']);
        $titleColor = strip_tags($instance['titleColor']);
        $forceTitleUnderline = $instance['forceTitleUnderline'] ? 'checked="checked"' : '';
        $removeTextContentDivTag = $instance['removeTextContentDivTag'] ? 'checked="checked"' : '';
        $newWindow = $instance['newWindow'] ? 'checked="checked"' : '';
        $text = format_to_edit($instance['text']);
        ?>
        <p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" /></p>
        <p><label for="<?php echo $this->get_field_id('titleUrl'); ?>"><?php _e('Title Url:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('titleUrl'); ?>" name="<?php echo $this->get_field_name('titleUrl'); ?>" type="text" value="<?php echo esc_attr($titleUrl); ?>" /></p>
        <p><label for="<?php echo $this->get_field_id('titleColor'); ?>"><?php _e('Title Color:'); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id('titleColor'); ?>" name="<?php echo $this->get_field_name('titleColor'); ?>" type="text" value="<?php echo esc_attr($titleColor); ?>" /></p>
        <p><input class="checkbox" type="checkbox" <?php echo $forceTitleUnderline; ?> id="<?php echo $this->get_field_id('forceTitleUnderline'); ?>" name="<?php echo $this->get_field_name('forceTitleUnderline'); ?>" />
        <label for="<?php echo $this->get_field_id('forceTitleUnderline'); ?>"><?php _e('Force widget title underline'); ?></label></p>
        <p><input class="checkbox" type="checkbox" <?php echo $removeTextContentDivTag; ?> id="<?php echo $this->get_field_id('removeTextContentDivTag'); ?>" name="<?php echo $this->get_field_name('removeTextContentDivTag'); ?>" />
        <label for="<?php echo $this->get_field_id('removeTextContentDivTag'); ?>"><?php _e('Remove Text Content Div Tag'); ?></label></p>
        <p><input class="checkbox" type="checkbox" <?php echo $newWindow; ?> id="<?php echo $this->get_field_id('newWindow'); ?>" name="<?php echo $this->get_field_name('newWindow'); ?>" />
        <label for="<?php echo $this->get_field_id('newWindow'); ?>"><?php _e('Open the link/url in a new window'); ?></label></p>
        
        <p><label for="<?php echo $this->get_field_id('text'); ?>"><?php _e('Text, Html, Javascript, Flash and/or Php:'); ?></label>
        <textarea class="widefat" rows="16" cols="20" id="<?php echo $this->get_field_id('text'); ?>" name="<?php echo $this->get_field_name('text'); ?>"><?php echo $text; ?></textarea>

        <p><input id="<?php echo $this->get_field_id('filter'); ?>" name="<?php echo $this->get_field_name('filter'); ?>" type="checkbox" <?php checked(isset($instance['filter']) ? $instance['filter'] : 0); ?> />&nbsp;<label for="<?php echo $this->get_field_id('filter'); ?>"><?php _e('Automatically add paragraphs.'); ?></label></p>
          <p>
            <center>
                This plugin is a personal open source project. Started in 2009, I have put considerable amount of hours adding, refining, tuning, fixing, maintaining the plugin with the goal to make it useful and add to Wordpress community. I need your help to achieve this.<br />
                <a href='https://pledgie.com/campaigns/23211' target="_blank"><img alt='Click here to lend your support to: This Plugin and make a donation at pledgie.com !' src='https://pledgie.com/campaigns/23211.png?skin_name=chrome' border='0' ></a>
            </center>
            <div id="sideblock" style="float:left;width:220px;margin-left:10px;">
              <h2>Information</h2>
              <div id="dbx-content" style="text-decoration:none;">
                <img src="<?php echo WP_PLUGIN_URL; ?>/linkable-title-html-and-php-widget/images/home.png"><a target="_blank" style="text-decoration:none;" href="http://peplamb.com/linkable-title-html-and-php-widget/"> Plugin Home</a><br />
                <img src="<?php echo WP_PLUGIN_URL; ?>/linkable-title-html-and-php-widget/images/rate.png"><a target="_blank" style="text-decoration:none;" href="http://wordpress.org/extend/plugins/linkable-title-html-and-php-widget/"> Rate this plugin</a><br />
                <img src="<?php echo WP_PLUGIN_URL; ?>/linkable-title-html-and-php-widget/images/help.png"><a target="_blank" style="text-decoration:none;" href="http://peplamb.com/linkable-title-html-and-php-widget/#respond"> Support and Help</a><br />
                <img src="<?php echo WP_PLUGIN_URL; ?>/linkable-title-html-and-php-widget/images/twit.png"><a target="_blank" style="text-decoration:none;" href="http://twitter.com/peplamb/">Follow me on Twitter</a><br />
                <strong>More plugins by PepLamb:</strong>
                <ul>
                    <li><a target="_blank" href="http://peplamb.com/google-analytics-visits/">Google Analytics Visits</a></li>
                    <li><a target="_blank" href="http://peplamb.com/custom-field-cookie/">Custom Field Cookie</a></li>
                </ul>
              </div>
              <div style="clear:both"></div>
              <?php //LinkableTitleHtmlAndPhpWidget_plugin_print_facebook_like_button(); ?>
            </div>
          </p><!-- Linkable Title Html and Php Widget (by PepLamb, http://PepLamb.com) -->
        <?php
    }
}
function LinkableTitleHtmlAndPhpWidgetInit() {
    register_widget('LinkableTitleHtmlAndPhpWidget');
}
add_action('widgets_init', 'LinkableTitleHtmlAndPhpWidgetInit');

/**
 *
 *@since 1.2.2
 */
if(isset($_POST['Submit']) && isset($_POST['LinkableTitleHtmlAndPhpWidget_save'])) {
    if($_POST['Submit'] == "Save" && $_POST['LinkableTitleHtmlAndPhpWidget_save'] == "Save") {
        update_option('LinkableTitleHtmlAndPhpWidget_disableUpdateNag' ,           $_POST['LinkableTitleHtmlAndPhpWidget_disableUpdateNag']);

        add_action( 'admin_notices', 'LinkableTitleHtmlAndPhpWidget_options_saved_notice', 9 );
    }
}
/**
 *
 *@since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_options_saved_notice() {
    echo "<div class='updated'><p>Linkable Title Html And Php Widget options saved.</p></div>";
}

/**
 *
 *@since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_donate_url() {
    return "https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=TV873GDVX3MQC&lc=US&item_name=PepLamb&item_number=Linkable%20Title%20Html%20And%20Php%20Widget&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted";
}
/**
 *
 *@since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_donate() {
    ?>
    <a href='https://pledgie.com/campaigns/23211'><img alt='Click here to lend your support to: Linkable Title Html and Php Widget and make a donation at pledgie.com !' src='https://pledgie.com/campaigns/23211.png?skin_name=chrome' border='0' ></a>
    <?php
}
/**
 *
 *@since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_currPageURL() {
    $pageURL = 'http';
    if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
    $pageURL .= "://";
    if ($_SERVER["SERVER_PORT"] != "80") {
        $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
    } else {
        $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
    }
    return $pageURL;
}

/**
 *
 *@since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_activate() {
    if(!get_option('LinkableTitleHtmlAndPhpWidget_disableUpdateNag'))
        add_option('LinkableTitleHtmlAndPhpWidget_disableUpdateNag', 'yes');
}
register_activation_hook( __FILE__, 'LinkableTitleHtmlAndPhpWidget_activate' );
/**
 *
 *@since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_deactivate() {
}
register_deactivation_hook( __FILE__, 'LinkableTitleHtmlAndPhpWidget_deactivate' );

/**
 *
 *@since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_options() {
    ?>
<div class="wrap">
    <div class="icon32" id="icon-options-general"><br/></div>
    <h2 style="margin-top:0">Linkable Title Html And Php Widget <?php echo LinkableTitleHtmlAndPhpWidget_plugin_get_version(); ?> Options</h2>
    <p>
        <?php
        LinkableTitleHtmlAndPhpWidget_plugin_print_facebook_like_button();
        echo " ";
        LinkableTitleHtmlAndPhpWidget_plugin_print_twitter_follow_button();
        echo " ";
        LinkableTitleHtmlAndPhpWidget_plugin_print_twitter_share_a_link_button();
        echo " ";
        LinkableTitleHtmlAndPhpWidget_plugin_print_google_plus_1_button();
        ?>
    </p>

    <div style="width: 620px;">
        <div style="float:left;background-color:white;padding: 10px 10px 10px 10px;margin-right:15px;border: 1px solid #ddd;">
            <div style="width:300px;">
                <h3>Donate</h3>
                <p>This plugin is a personal open source project. Started in 2009, I have put considerable amount of hours adding, refining, tuning, fixing, maintaining the plugin with the goal to make it useful and add to Wordpress community. I need your help to achieve this.</p>
                <p><a href='https://pledgie.com/campaigns/23211' target="_blank"><img alt='Click here to lend your support to: This Plugin and make a donation at pledgie.com !' src='https://pledgie.com/campaigns/23211.png?skin_name=chrome' border='0' ></a></p>
            </div>
        </div>
        <div id="sideblock" style="float:right;width:270px;margin-left:10px;">
            <h2 style="margin-top: -20px;">Information</h2>
            <div id="dbx-content" style="text-decoration:none;">
                <img src="<?php echo WP_PLUGIN_URL; ?>/linkable-title-html-and-php-widget/images/home.png" alt="Home Image"><a target="_blank" style="text-decoration:none;" href="http://peplamb.com/linkable-title-html-and-php-widget/">Linkable Title Html And Php Widget Home</a><br />
                <img src="<?php echo WP_PLUGIN_URL; ?>/linkable-title-html-and-php-widget/images/rate.png" alt="Rate Image"><a target="_blank" style="text-decoration:none;" href="http://wordpress.org/extend/plugins/linkable-title-html-and-php-widget/">Rate this plugin</a><br />
                <img src="<?php echo WP_PLUGIN_URL; ?>/linkable-title-html-and-php-widget/images/help.png" alt="Help Image"><a target="_blank" style="text-decoration:none;" href="http://peplamb.com/linkable-title-html-and-php-widget/#respond">Support and Help</a><br />
                <br />
                <!--<img src="<?php echo WP_PLUGIN_URL; ?>/linkable-title-html-and-php-widget/images/twit.png" alt="Twitter Image"><a target="_blank" style="text-decoration:none;" href="http://twitter.com/peplamb/"> Follow updates on Twitter</a><br />-->
                <?php
                LinkableTitleHtmlAndPhpWidget_plugin_print_facebook_like_button();
                echo " ";
                LinkableTitleHtmlAndPhpWidget_plugin_print_twitter_follow_button();
                echo " ";
                LinkableTitleHtmlAndPhpWidget_plugin_print_twitter_share_a_link_button();
                echo " ";
                LinkableTitleHtmlAndPhpWidget_plugin_print_google_plus_1_button();
                echo "<br />";
                ?>
                <strong>More plugins by PepLamb:</strong>
                <ul>
                    <li><a target="_blank" href="http://peplamb.com/google-analytics-visits/">Google Analytics Visits</a></li>
                    <li><a target="_blank" href="http://peplamb.com/custom-field-cookie/">Custom Field Cookie</a></li>
                </ul>
            </div>
        </div>
    </div>
    <div style="clear:both;"></div>

    <form method="post" action="">
        <table class="form-table">
            <tbody>
            <tr valign="top">
                <th scope="row"><label for="LinkableTitleHtmlAndPhpWidget_disableUpdateNag">Disable Update Nag?</label></th>
                <td>
                    <fieldset id="LinkableTitleHtmlAndPhpWidget_disableUpdateNag"><legend class="hidden">Disable Update Nag?</legend>
                        <input type="radio" <?php echo get_option('LinkableTitleHtmlAndPhpWidget_disableUpdateNag')=='yes'         ?'checked="checked"':''; ?> value="yes"         name="LinkableTitleHtmlAndPhpWidget_disableUpdateNag"/> Yes
                        <input type="radio" <?php echo get_option('LinkableTitleHtmlAndPhpWidget_disableUpdateNag')=='no'          ?'checked="checked"':''; ?> value="no"          name="LinkableTitleHtmlAndPhpWidget_disableUpdateNag"/> No
                    </fieldset>
                    <span class="setting-description">Disabling update nag will no longer notify you of available updates via update nag.</span>
                </td>
            </tr>
            </tbody>
        </table>
        <p class="submit">
            <input type="hidden" value="Save" name="LinkableTitleHtmlAndPhpWidget_save"/>
            <input type="submit" value="Save" class="button-primary" name="Submit"/>
        </p>
    </form>
</div>
<?php
}
/**
 *
 *@since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_menu() {
	//jt 26.05.20: replaced deprecated capability value '8' with capability 'edit_theme_options'
    add_options_page('Linkable Title Html And Php Widget', 'Linkable Title Html And Php Widget', 'edit_theme_options', __FILE__, 'LinkableTitleHtmlAndPhpWidget_options');
}
add_action('admin_menu', 'LinkableTitleHtmlAndPhpWidget_menu');


/**
 * This function gets the present plugin version.
 *
 * @since 1.0.9
 */
function LinkableTitleHtmlAndPhpWidget_plugin_get_version() {
    if ( ! function_exists( 'get_plugins' ) )
       require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
    $plugin_folder = get_plugins( '/' . plugin_basename( dirname( __FILE__ ) ) );
    $plugin_file = basename( ( __FILE__ ) );
    return $plugin_folder[$plugin_file]['Version'];
}
/**
 * This function gets the plugin name.
 *
 * @since 1.0.9
 */
function LinkableTitleHtmlAndPhpWidget_plugin_get_plugin_name() {
    if ( ! function_exists( 'get_plugins' ) )
       require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
    $plugin_folder = get_plugins( '/' . plugin_basename( dirname( __FILE__ ) ) );
    $plugin_file = basename( ( __FILE__ ) );
    return $plugin_folder[$plugin_file]['Name'];
}
/**
 * This function gets the plugin uri.
 *
 * @since 1.0.9
 */
function LinkableTitleHtmlAndPhpWidget_plugin_get_plugin_url() {
    if ( ! function_exists( 'get_plugins' ) )
       require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
    $plugin_folder = get_plugins( '/' . plugin_basename( dirname( __FILE__ ) ) );
    $plugin_file = basename( ( __FILE__ ) );
    return $plugin_folder[$plugin_file]['PluginURI'];
}
/**
 * This function prints facebook like button.
 *
 * @since 1.1.3
 */
function LinkableTitleHtmlAndPhpWidget_plugin_print_facebook_like_button( $echo = true ) {
    $slug = "linkable-title-html-and-php-widget";

    $facebook_like = sprintf( __('<div id="fb-root"></div><script type="text/javascript">(function(d, s, id) {var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) return;js = d.createElement(s); js.id = id;js.src = "http://connect.facebook.net/en_US/all.js#xfbml=1";fjs.parentNode.insertBefore(js, fjs);}(document, "script", "facebook-jssdk"));</script>', $slug)) .
        sprintf( __('<div class="fb-like" data-href="http://peplamb.com/%s/" data-send="false" data-layout="button_count" data-width="90" data-show-faces="false"></div>', $slug), $slug);

    if($echo) {
        printf( $facebook_like );
    }
    else {
        return $facebook_like;
    }
}

/**
 * This function prints twitter_share_a_link button.
 *
 * @since 1.2.3
 */
function LinkableTitleHtmlAndPhpWidget_plugin_print_twitter_share_a_link_button( $echo = true ) {
    $slug = "linkable-title-html-and-php-widget";

    $twitter_share_a_link = sprintf( __('<a href="https://twitter.com/share" class="twitter-share-button" data-url="http://peplamb.com/%s/" data-via="peplamb" data-related="peplamb" data-hashtags="peplamb">Tweet</a><script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>', $slug), $slug);

    if($echo) {
        printf( $twitter_share_a_link );
    }
    else {
        return $twitter_share_a_link;
    }
}

/**
 * This function prints google_plus_1 button.
 *
 * @since 1.2.3
 */
function LinkableTitleHtmlAndPhpWidget_plugin_print_google_plus_1_button( $echo = true ) {
    $slug = "linkable-title-html-and-php-widget";

    $google_plus_1 = sprintf( __('<script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script><div class="g-plusone" data-size="medium" data-href="peplamb.com/%s/"></div>', $slug), $slug);

    if($echo) {
        printf( $google_plus_1 );
    }
    else {
        return $google_plus_1;
    }
}

/**
 * This function prints twitter_follow button.
 *
 * @since 1.2.3
 */
function LinkableTitleHtmlAndPhpWidget_plugin_print_twitter_follow_button( $echo = true ) {
    $slug = "linkable-title-html-and-php-widget";

    $twitter_follow = sprintf( __('<a href="https://twitter.com/peplamb" class="twitter-follow-button" data-show-count="false">Follow @peplamb</a><script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>', $slug));

    if($echo) {
        printf( $twitter_follow );
    }
    else {
        return $twitter_follow;
    }
}

/**
 * This function displays the update nag at the top of the
 * dashboard if there is an plugin update available.
 *
 * @since 1.0.9
 */
function LinkableTitleHtmlAndPhpWidget_update_nag() {

    if(get_option('LinkableTitleHtmlAndPhpWidget_disableUpdateNag') == 'yes') {
        return false;
    }
    if(isset($_GET["action"]) && $_GET["action"] == "upgrade-plugin") {
        return false;
    }

    $slug = "linkable-title-html-and-php-widget";
    $file = "$slug/$slug.php";

    if(!function_exists('plugins_api'))
        include(ABSPATH . "wp-admin/includes/plugin-install.php");

    $info = plugins_api('plugin_information', array('slug' => $slug ));

    if ( !current_user_can('update_plugins') )
        return false;
    if ( stristr(trim($info->version), trim(LinkableTitleHtmlAndPhpWidget_plugin_get_version())) )
        return false;

    $plugin_name = LinkableTitleHtmlAndPhpWidget_plugin_get_plugin_name();
    $plugin_url = LinkableTitleHtmlAndPhpWidget_plugin_get_plugin_url();

    if(function_exists('self_admin_url')) {
        $update_url = wp_nonce_url( self_admin_url('update.php?action=upgrade-plugin&plugin=') . $file, 'upgrade-plugin_' . $file);
    }
    else {// to support wp version < 3.1.0
        $update_url = wp_nonce_url( get_bloginfo('wpurl')."/wp-admin/".('update.php?action=upgrade-plugin&plugin=') . $file, 'upgrade-plugin_' . $file);
    }
    $donate_url = LinkableTitleHtmlAndPhpWidget_donate_url();

//    echo '<div id="update-nag">';
//    echo "<strong>$plugin_name</strong> ";
//    LinkableTitleHtmlAndPhpWidget_plugin_print_facebook_like_button();
//    echo "<br />";
//    printf( __('<a href="%s" target="_blank">%s %s</a> is available! <a href="%s">Please update now</a>. Please consider <a href="%s"><strong>donating</strong></a> to keep me going, Thanks muchly!', $slug), $plugin_url, $plugin_name, $info->version, $update_url, $donate_url );
//    echo '</div>';
    echo '<div id="update-nag">';
    printf( __('<a href="%s" target="_blank">%s %s</a> is available! <a href="%s">Please update now</a>. Please consider <a href="%s"><strong>donating</strong></a> to keep me going, thank you!', $slug), $plugin_url, $plugin_name, $info->version, $update_url, $donate_url );
    echo "<br />";
    printf( __("%s", $slug), LinkableTitleHtmlAndPhpWidget_donate());
    echo "<br />";
    LinkableTitleHtmlAndPhpWidget_plugin_print_facebook_like_button();
    echo " ";
    LinkableTitleHtmlAndPhpWidget_plugin_print_twitter_follow_button();
    echo " ";
    LinkableTitleHtmlAndPhpWidget_plugin_print_twitter_share_a_link_button();
    echo " ";
    LinkableTitleHtmlAndPhpWidget_plugin_print_google_plus_1_button();
    echo '</div>';

    return true;
}
add_action('admin_notices', 'LinkableTitleHtmlAndPhpWidget_update_nag');

/**
 * Add FAQ and support information.
 *
 * @since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_filter_plugin_links($links, $file) {
    if ( $file == plugin_basename(__FILE__) ) {
        $links[] = '<a href="http://peplamb.com/linkable-title-html-and-php-widget/">' . __('FAQ', 'linkable-title-html-and-php-widget') . '</a>';
        $links[] = '<a href="http://peplamb.com/linkable-title-html-and-php-widget/">' . __('Support', 'linkable-title-html-and-php-widget') . '</a>';
        $links[] = '<a href="http://peplamb.com/donate/">' . __('Donate', 'linkable-title-html-and-php-widget') . '</a>';
    }

    return $links;
}
add_filter('plugin_row_meta', 'LinkableTitleHtmlAndPhpWidget_filter_plugin_links', 10, 2);

/**
 * Add settings option.
 *
 * @since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_filter_plugin_actions($links) {
    $new_links = array();
    $slug = "linkable-title-html-and-php-widget";
    if(function_exists('self_admin_url')) {
        $new_links[] = '<a href="'.self_admin_url('options-general.php?page='.$slug.'/'.$slug.'.php').'">' . __('Settings', $slug) . '</a>';
    }
    else {// to support wp version < 3.1.0
        $new_links[] = '<a href="'.get_bloginfo('wpurl')."/wp-admin/".('options-general.php?page='.$slug.'/'.$slug.'.php').'">' . __('Settings', $slug) . '</a>';
    }

    return array_merge($new_links, $links);
}
add_action('plugin_action_links_' . plugin_basename(__FILE__), 'LinkableTitleHtmlAndPhpWidget_filter_plugin_actions');

/**
 * Footer hook.
 *
 * @since 1.2.2
 */
function LinkableTitleHtmlAndPhpWidget_footer_hook() {
    echo '<!-- This website uses Linkable Title Html And Php Widget v' . LinkableTitleHtmlAndPhpWidget_plugin_get_version() . ' Wordpress plugin developed by PepLamb (PepLamb.com) -->';
}
add_action('wp_footer', 'LinkableTitleHtmlAndPhpWidget_footer_hook');
?>