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PHP rtrim() Function

PHP rtrim() Function

PHP rtrim() function is used to remove whitespaces form the right end of a string. It also removes other predefined characters (if specified) from the right side of a string. This function accepts two parameters out of which, one is mandatory while the other one is optional.

Syntax:

  rtrim( $string, $charlist );

Parameter Values

Parameter Description
string This is a required parameter. This parameter contains the string to be checked.
charlist This is an optional parameter. This parameter defines which characters to remove from the string.
  • "\0" - NULL
  • "\t" - tab
  • "\n" - new line
  • "\x0B" - vertical tab
  • "\r" - carriage return
  • " " - white space

Here is an example of rtrim() function in PHP:

<html>
<body>

<?php
$str = "PHP                ";
echo rtrim($str);
echo "(no space)";
?>

</body>
</html>
Output:
PHP(no space)

Here is an another example of rtrim() function in PHP:

<html>
<body>

<?php
$str = "Everyone is Beautiful & Smart.";
echo $str . "<br>";
echo rtrim($str,"& Smart.");
?>

</body>
</html>
Output:
Everyone is Beautiful & Smart.
Everyone is Beautiful

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