PHP Trim()- String functions

Trim() is a php function that strips whitespaces from the beginning and end of a string.
For example:

$mystring = trim( " The free php sources ") ;
echo $mystring ;

Display:

The free php sources //No whitespaces

What characters do Trim() strip ?
Trim function will strip the following characters:

• " " (ASCII 32 ): an ordinary space.
• "\t" (ASCII 9 ): a tab.
• "\n" (ASCII 10 ): a new line (line feed).
• "\r" (ASCII 13 ): a carriage return.
• "\0" (ASCII 0 ): the NUL-byte.
• "\x0B" (ASCII 11 ): a vertical tab.

Can I trim other characters:
Yes, this is possible and very easy, you just use a second parameter with all characters you want to stim.

Example: Trim these characters from the beginning and end of a string: "s" , "T" , "h".

$mystring = trim( "The free php sources" , "sTh") ;
echo $mystring ;

Display:

e free php source

Trim() is case-sensitive, that's why we used "sTh" and not "sth".

Trim from only the beginning or the end of a string:
To trim from the beginning, use ltrim() , and to trim from the end use rtrim()