Question

I have a script where I can use either substr() or str_replace(). With substr() I just have to cut off the last character and with str_replace I need to replace ! with nothing. Which one would be faster?

I guess substr()?

Answer 1

I’m not familiar with the PHP source code, but I assume definitely substr(), as it can jump directly to the defined offset.

Don’t forget though that this will make a difference only with lots of data. For smaller strings, it is preferable to choose whatever makes for more readable code.