(PHP 4, PHP 5, PHP 7)
rtrim — ɾ���ַ���ĩ�˵Ŀհ��ַ������������ַ���
$str
[, string $character_mask
] ) : string
�ú���ɾ�� str
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��ʹ�õڶ���������rtrim() ��ɾ�������ַ���
str
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character_mask
ͨ��ָ�� character_mask
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Example #1 rtrim() ʹ�÷���
<?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);
// ɾ�� $binary ĩ�˵� ASCII ������ַ�
// (���� 0 - 31)
$clean = rtrim($binary, "\x00..\x1F");
var_dump($clean);
?>
�������̻������
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"