Question

I realized that I have some weird issue with str_replace() where it seemingly doesn’t replace every occurence of $search with $replace even tho i have not specified a $count variable…
My code

    echo "head_title_array ".html_entity_decode($head_title_array['title'])."\n\n";
    $Mytitle = strtolower(str_replace(" ", "_", html_entity_decode($head_title_array['title'])));
    echo "Mytitle ".$Mytitle;

and the output:

      head_title_array Stay & play golf packages

      Mytitle stay_& play_golf_packages

Why is that? I would expect $Mytitle to have a value of “stay_&_play_golf_packages“.
What’s going on here?

Any help is appreciated!!!

Answer 1

Probably you have unicode spaces in your string.

Possible solution for you is to use preg_replace

preg_replace('/\p{Zs}/u', '_', $your_string);

Unicode character properties