Regex str_replace
问题 Would it be possible to incorporate a str_replace method with a regular expression, designed to catch url strings in a simple html < textfield > input type? I'm considering something simple like a tip for the user to set it up as follows: This is some text and click this link here. Obviously the word "here" is a href to the url before it (or after it, if that makes a difference). The text input is drawn from a MySQL db. I believe the start of my solution is something along the lines of: