Вот подельться сайтом от яндекс, Примеры тут http://vferma.ru/primer.php

                        
echo Кнопка:



echo '<script type="text/javascript" src="//yandex.st/share/share.js"

charset="utf-8"></script>

<div class="yashare-auto-init" data-yashareL10n="ru"

 data-yashareType="button" data-yashareQuickServices="yaru,vkontakte,facebook,twitter,odnoklassniki,moimir"



></div>';



ссылка:



echo '<script type="text/javascript" src="//yandex.st/share/share.js"

charset="utf-8"></script>

<div class="yashare-auto-init" data-yashareL10n="ru"

 data-yashareType="link" data-yashareQuickServices="yaru,vkontakte,facebook,twitter,odnoklassniki,moimir"



></div> 



';

Иконки и меню:

echo '<script type="text/javascript" src="//yandex.st/share/share.js"

charset="utf-8"></script>

<div class="yashare-auto-init" data-yashareL10n="ru"

 data-yashareType="icon" data-yashareQuickServices="yaru,vkontakte,facebook,twitter,odnoklassniki,moimir"



></div> 

';

Только иконки:

echo '<script type="text/javascript" src="//yandex.st/share/share.js"

charset="utf-8"></script>

<div class="yashare-auto-init" data-yashareL10n="ru"

 data-yashareType="none" data-yashareQuickServices="yaru,vkontakte,facebook,twitter,odnoklassniki,moimir"



></div> ';