trim() - string

This function returns a string with whitespace stripped from the
   beginning and end of str.
   Without the second parameter,
   trim() will strip these characters:
   
   


      " " (ASCII 32 
      (0x20)), an ordinary space.
     



      "	" (ASCII 9 
      (0x09)), a tab.
     



      "
" (ASCII 10 
      (0x0A)), a new line (line feed).
     



      "
" (ASCII 13 
      (0x0D)), a carriage return.
     



      "" (ASCII 0 
      (0x00)), the NUL-byte.
     


 
      "x0B" (ASCII 11 
      (0x0B)), a vertical tab.

Parameters : 
 str - The string that will be trimmed. 
 character_mask - Optionally, the stripped characters can also be specified using
       the character_mask parameter.
       Simply list all characters that you want to be stripped. With
       .. you can specify a range of characters. 

Syntax

string trim
    ( string $str
   [, string $character_mask = " 	

�x0B"
  ] )

Example

<?php$text   = "\t\tThese are a few words :) ...  ";$binary = "\x09Example string\x0A";$hello  = "Hello World";var_dump($text, $binary, $hello);print "\n";$trimmed = trim($text);var_dump($trimmed);$trimmed = trim($text, " \t.");var_dump($trimmed);$trimmed = trim($hello, "Hdle");var_dump($trimmed);$trimmed = trim($hello, 'HdWr');var_dump($trimmed);// trim the ASCII control characters at the beginning and end of $binary// (from 0 to 31 inclusive)$clean = trim($binary, "\x00..\x1F");var_dump($clean);?>

Output / Return Value

Limitations

Alternatives / See Also

Reference