add elipsis when multiple lines overflow on several div elements

Question

I'm trying to add execute this code which adds an elipsis at the end of the text when it overflows:

 var ph=$('.txt-entries .txt-entries-wrap');
                var p=$('.txt-entries .txt-entries-wrap p');
                var divh=$('.txt-entries').height();
                while ($(ph).outerHeight()>divh) {
                    $(p).text(function (index, text) {
                        return text.replace(/\W*\s(\S)*$/, '...');
                    });
                }

adapted from this thread Cross browsers mult-lines text overflow with ellipsis appended within a width&height fixed div?

To several div elements, but when I place it within an each loop it causes it to crash. Here is the HTML:

 <div class="txt-block">
                          <div class="txt-entries">
                                <div class="txt-entries-wrap">
                                    <h2>Lorem ipsum</h2>
                                    <p class="copy">Lorem ipsum</p>
                                </div>
                          </div>
                                <div class="cta-aligner">
                                    <a class="cta-2" href="#">
                                        Lorem ipsum
                                    </a>
                                </div>
                        </div>
<div class="txt-block">
                          <div class="txt-entries">
                                <div class="txt-entries-wrap">
                                    <h2>Lorem ipsum</h2>
                                    <p class="copy">Lorem ipsum</p>
                                </div>
                          </div>
                                <div class="cta-aligner">
                                    <a class="cta-2" href="#">
                                        Lorem ipsum
                                    </a>
                                </div>
                        </div>

How can I execute it for all .txt-block elements?