Filter spaces, urgent online, etc.

Filter spaces, urgent online, etc., such as $ str = "Volker Bruch ";
How to filter out spaces between the front and the back of (Volker Bruch) and retain spaces in the middle.

Reply to discussion (solution)

Str_replace ("", "", $ str );

Replace

Echo preg_replace ('/^ \ s + | \ s + $/', ', $ str );

$ Str = "Volker Bruch ";
Echo trim ($ str );

$ Str = "Volker Bruch ";
Echo trim ($ str); + 1

$ Str = "Volker Bruch ";
Echo trim ($ str );
Trim deletes the two ends.

PHP trim () function
Http://www.w3school.com.cn/php/func_string_trim.asp
Removes spaces at the beginning and end.

$ Str = "Volker Bruch ";
Echo trim ($ str );
Trim deletes the two ends.
Yes.
Filter out the spaces between the front and back of (Volker Bruch) and retain the spaces in the middle. It is the meaning of filtering both ends.