PHP rtrim()

The rtrim() function removes whitespace or other predefined characters from the right side of a string.

Syntax

rtrim($string, $charlist)

• The $string parameter is the string from which characters are removed.

• The $charlist parameter specifies which characters to remove from the string. If omitted, then the following characters are removed from the right side (if applicable):

• \0 - NULL

• \t - tab

• \n - new line

• x0B - vertical tab

• \r - carriage return

• " " - space

Example

The following example removes specified characters from the right side of a string:

<?php
  $str = "Hello World!\n";
  echo "Without rtrim: " . $str;
  echo "With rtrim: " . rtrim($str, "World!\n");
?>

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This results in the following output:

Without rtrim: Hello World!
With rtrim: Hello

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Codebyte Example

The following runnable example removes whitespaces from the right side of the string:

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