Php trim space trim is invalid use str_replace implement _ PHP Tutorial

Php trim space trim is not implemented using str_replace. Php has a trime function for removing spaces. it can remove two spaces or directly use the ltrim function. the result of the rtrim function is the same as that of the trim function. if you want to delete all spaces, you only need to replace str_replace. Php has a trime function for removing spaces. it can remove two spaces or directly use the ltrim function. the result of the rtrim function is the same as that of the trim function. if you want to delete all spaces, you only need to replace str_replace.

I usually think about spaces. I usually use trim. today, I found that spaces in the middle cannot be removed. however, we can only find out the description. trim can only go to two ends, for example, $ abc = a B c;. trim can only remove spaces behind c in front of, but what should I do with spaces before and after B. str_replace is available.

The code is as follows:
Str_replace ('','', $ abc ).

Please be careful when spaces are needed. php does not use spaces. trim does not work. The str_replace line is complete. However, trim can delete the header space as follows:

Example

The code is as follows:
Trim removes spaces at both ends of a string, Rtrim removes the right space of a string, Ltrim removes the left space of a string. Echo trim ("space www. bKjia. c0m ")." "; Echo rtrim ("space ")." "; Echo ltrim ("space ")." "; ?>

The result is the same as that of str_replace.

Trim trime, which can remove two spaces or directly use the ltrim and rtrim functions to return the same result as trim. if you want to delete all spaces, replace them with str_replace ....