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PHP字符过滤函数去除字符串最后一个逗号(rtrim)_PHP教程

程序员文章站 2024-02-06 16:20:10
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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)
?>

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/326706.htmlTechArticle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...