# PHP chop() Function

PHP String Reference

## Example

Remove characters from the right end of a string:

<?php
$str = "Hello World!";
echo $str . "<br>";
echo chop($str,"World!");
?>
Run example »

## Definition and Usage

The chop() function removes whitespaces or other predefined characters from the right end of a string.

## Syntax

chop(string,charlist)

Parameter | Description
--- | ---
string | Required. Specifies the string to check

charlist

Optional. Specifies which characters to remove from the string.
The following characters are removed if the charlist parameter is empty:

- "\0" - NULL
- "\t" - tab
- "\n" - new line
- "\x0B" - vertical tab
- "\r" - carriage return
- " " - ordinary white space

## Technical Details

Return Value: | Returns the modified string
PHP Version: | 4+
Changelog: | The charlist parameter was added in PHP 4.1.0

## More Examples

## Example 1

Remove newlines (\n) from the right end of a string:

<?php
$str = "Hello World!\n\n";
echo $str;
echo chop($str);
?>

The HTML output of the code above will be (View Source):

<!DOCTYPE html>
<html>
<body>
Hello World!
Hello World!
</body>
</html>

The browser output of the code above will be:

Hello World! Hello World!
Run example »

PHP String Reference

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