Fastest way to replace string in PHP

Question

I need to replace some string in a PHP code to make it look better. What would be the best way to go about that?

Answer 1

preg_replace

Is a good way to go and uses regular expressions so you have flexibility as to how to do it.

Answer 2

It depends. If str_replace works for your case, I think is faster and less memory consumer than preg_replace

Answer 3

If you want to replace a string in a lot of files once (e.g., you have something in your source code which you want to replace), sed might be the right tool for the job.

man sed

Answer 4

The usual suspects would be str_replace and preg_replace.