PHP rtrim() Function

The PHP rtrim() function returns a string which is right side trimmed version of the specified string. It removes whitespaces (or other characters) from right side of the string.

Syntax

rtrim(string, characters)

Parameters

`string`	`Required.` Specify the string to trim.
`Characters`	`Optional.` Specify characters which need to be trimmed from the string. Without this parameter, the function will strip following characters: " " - an ordinary space. "\t" - a tab. "\n" - a new line (line feed). "\r" - a carriage return. "\0" - the NULL-byte. "\v" - a vertical tab.

Return Value

Returns the right side trimmed version of the specified string.

Example:

In the example below, rtrim() function returns the right side trimmed version of the given string.

<?php
$MyString = "    Hello World!.    ";
$NewString = rtrim($MyString);

echo $NewString."\n";
?>

The output of the above code will be:

    Hello World!.

Example:

We can also specify the characters which need to be trimmed from the given string. Consider the example below:

<?php
$MyString = ",*#Hello World!#@!";
$NewString = rtrim($MyString, ",*#@!");

echo $NewString."\n";
?>

The output of the above code will be:

,*#Hello World

❮ PHP String Reference