Home >Backend Development >PHP Tutorial >PHP字符过滤函数去除字符串最后一个逗号(rtrim)_PHP

PHP字符过滤函数去除字符串最后一个逗号(rtrim)_PHP

WBOY
WBOYOriginal
2016-06-01 12:07:52953browse

首先分别解释下,

trim过滤字符串两端,
rtrim过滤字符串尾部,=chop()
ltrim过滤字符串首部.

过滤字符串中键的咚咚就只能用str_replace咯.
举个例子说明下,

PHP代码
复制代码 代码如下:
$str = '123,333,234,';
echo rtrim($str, ',');

rtrim实例代码2
复制代码 代码如下:
$text = "\t\tThese are a few words :) ...  ";
$trimmed = rtrim($text);
// $trimmed = "\t\tThese are a few words :) ..."
$trimmed = rtrim($text, " \t.");
// $trimmed = "\t\tThese are a few words :)"
$clean = rtrim($binary, "\x00..\x1F");
// trim the ASCII control characters at the end of $binary
// (from 0 to 31 inclusive)
?>

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn