循环遍历字符串中的url并将值附加到PHP正则表达式

Question

I have the following string for example:

Welcome to my <a href="http://example.com">site</a>. Feel free to  <a href="http://localhost.com">contact me</a>.

What technique may I use to evaluate this string to add '/id/123' at the end of both of the urls resulting in:

Welcome to my <a href="http://example.com/id/123">site</a>. Feel free to  <a href="http://localhost.com/id/123">contact me</a>.

Thanks.

Answer 1

This should work:

$string = preg_replace('/href="([^"]*)"/','href="\\1/id/123"',$string);