<?php

$html = '<div id="breadcrumbs">
    <a href="/">Home</a>
    <a href="/suppliers">Suppliers</a>
    <a href="/suppliers/jewellers">This One i needed</a>  
    <span class="currentpage">Amrapali</span>
</div>';
preg_match("#(?s)<a(?!.*<a).+</a>#", $html, $result);
print_r($result);