在两个斜杠之间替换字符串

Question

I have to modify an URL like this:

$string = "/st:1/sc:RsrlYQhSQvs=/fp:1/g:3/start:2015-07-01/end:2015-07-30";

Namely, I want to delete st:1 with a regex. I used:

preg_replace("/\/st:(.*)\//",'',$string)

but I got

end:2015-07-30

while I would like to get:

/sc:RsrlYQhSQvs=/fp:1/g:3/start:2015-07-01/end:2015-07-30

Same if I would like to delete fp:1.

Answer 1

You need to add ? in your regex:-

<?php

$string = "/st:1/sc:RsrlYQhSQvs=/fp:1/g:3/start:2015-07-01/end:2015-07-30";
echo preg_replace("/\/st:(.*?)\//",'',$string)

 ?>

Output:- https://eval.in/397658

Based on this same you can do for next things also.