PHP rtrim() Function
Topic: PHP String ReferencePrev|Next
Description
The rtrim() function strips whitespace and other characters from the end of a string.
The following table summarizes the technical details of this function.
| Return Value: | Returns the trimmed string. |
|---|---|
| Version: | PHP 4+ |
Syntax
The basic syntax of the rtrim() function is given with:
The following example shows the rtrim() function in action.
Example
Run this code »<?php
// Sample string
$str = " Hello World! ";
// Stripping whitespace from the end
echo rtrim($str);
?>Parameters
The rtrim() function accepts the following parameters.
| Parameter | Description |
|---|---|
| string | Required. Specifies the string to be trimmed. |
| strip_characters |
Optional. Specifies the list of all characters that you want to be stripped. If this parameter is not specified,
|
More Examples
Here're some more examples showing how rtrim() function actually works:
In the following example only space and new line characters from the end of the string will be stripped. Whitespace characters at the beginning and inside of the string will remain intact.
Example
Run this code »<?php
// Sample string
$str = " \tHello\n World!\n ";
// Trimming the trailing whitespace
echo rtrim($str);
?>In the following example only space, plus, and minus from right end of the string will be removed.
Example
Run this code »<?php
// Sample string
$str = " ++--\tHello World!++-- ";
// Removing characters from the right side
echo rtrim($str, " +-");
?>
