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rtrim

(PHP 4, PHP 5)

rtrim — Strip whitespace (or other characters) from the end of a string

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rtrim

(PHP 4, PHP 5)

rtrim — Strip whitespace (or other characters) from the end of a string

string rtrim(string $str[, string $charlist])

$str:
$charlist:

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Description #

string rtrim ( string $str [, string $charlist ] )

This function returns a string with whitespace stripped from the end of str.

Without the second parameter, rtrim() will strip these characters:

" " (ASCII 32 (0x20)), an ordinary space.
"\t" (ASCII 9 (0x09)), a tab.
"\n" (ASCII 10 (0x0A)), a new line (line feed).
"\r" (ASCII 13 (0x0D)), a carriage return.
"\0" (ASCII 0 (0x00)), the NULL-byte.
"\x0B" (ASCII 11 (0x0B)), a vertical tab.

Parameters #

str: The input string.
charlist: You can also specify the characters you want to strip, by means of the charlist parameter. Simply list all characters that you want to be stripped. With .. you can specify a range of characters.

Return Values #

Returns the modified string.

Examples #

Example #1 Usage example of rtrim()


<?php

$text = "\t\tThese are a few words :) ...  ";
$binary = "\x09Example string\x0A";
$hello  = "Hello World";
var_dump($text, $binary, $hello);

print "\n";

$trimmed = rtrim($text);
var_dump($trimmed);

$trimmed = rtrim($text, " \t.");
var_dump($trimmed);

$trimmed = rtrim($hello, "Hdle");
var_dump($trimmed);

// trim the ASCII control characters at the end of $binary
// (from 0 to 31 inclusive)
$clean = rtrim($binary, "\x00..\x1F");
var_dump($clean);

?>

The above example will output:

string(32) "        These are a few words :) ...  "
string(16) "    Example string
"
string(11) "Hello World"

string(30) "        These are a few words :) ..."
string(26) "        These are a few words :)"
string(9) "Hello Wor"
string(15) "    Example string"

Changelog #

Version	Description
4.1.0	The `charlist` parameter was added.

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rtrim

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