regex string followed by a number php string replace

Question

I'm not great with regex and I am trying to search a string for "&option=" plus a number [0-100].

So far i have this :

$link = str_replace("^&option[0-9]"," ",$actual_link);

Can any one help me with the correct regex expression?

Answer 1

Whatever its $ or & (confused by your question), use preg_replace() for your regex replace.

$link = preg_replace("/[&$]option=(?:100|[0-9]|[1-9][0-9])\b/"," ",$actual_link);

And I don't think you need that ^ for the anchoring!