how to remove first and last spaces in php [closed]

Question

 $search = substr($search_string, 0, -1);

It is only removing last one space only. Some times in last character after having 2 or more spaces how to remove all spaces after word last character and if some times end user entered first character space how to remove also first character?

Answer 1

You could use trim:

   $s = "  blabla   ";
   $s = trim($s, " ");

Answer 2

use trim():

trim — Strip whitespace (or other characters) from the beginning and end of a string

$search_string = trim($search_string);