Trimming Strings

Trimming is the process of removing whitespace characters before the first non-whitespace character and after the last non-whitespace character of the string.

We often remove these unwanted whitespace characters when processing templates or processing user input. For instance, assuming that _ denotes a space, instead of entering _Zsolt in a form field, you would expect that Zsolt is saved in the database.

The trim string method performs trimming: