PHP字符串拆分[关闭]

$var=<a href="/abcd/100th-indian-science-congress">100th Indian Science Congress</a>;

In the above i just only want to concatinate "100th-indian-science-congress" so please help me to solve this kind of problem

$result = str_replace(" ", "-", $var);

preg_match ('/a href="(.*?)"/', $var, $matches);

The result should be in $matches[1];

<?php
  $var= '<a href="/abcd/100th-indian-science-congress">100th Indian Science Congress</a>';  

  $url = preg_match('/<a href="(.+)">/', $var, $match);
  $outcome = basename($match[1]);
?>

Outcome see: http://sandbox.onlinephpfunctions.com/code/b4eea464a27c02d97e7bdd42fa959ff12884de96