On Tue, May 25, 2021 at 12:13 PM Eugene Sidelnyk <zsidel...@gmail.com> wrote:
> When use str_replace with arrays there's strange behavior > > https://3v4l.org/maNqa > > > ```php > var_dump(str_replace( > [ > ',', > '.', > ],[ > '.', > ',', > ], > '1.2,3' > )); > ``` > > This code is expected to replace all commas with dots and all dots with > commas, however in result we get all commas. > str_replace() performs the first replacement on the whole string, then the second replacement on the whole string etc. If you want to replace all strings "in parallel" you need to use strtr() instead: https://3v4l.org/tk6FO I believe this is what the "Caution" on http://php.net/str_replace is trying to tell you, though its phrasing is rather confusing. Regards, Nikita
