PHP字符过滤函数去除字符串最后一个逗号(rtrim)

发布时间：2020-12-13 06:15:06 所属栏目：PHP教程来源：网络整理

导读：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代码代码如下: $str = '123,333,234,'; echo rtrim($str,','); rtrim实例代码2 代码如下: $text =

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

代码如下:

$str = '123,333,234,'; 
echo rtrim($str,','); 

rtrim实例代码2

代码如下:

$text = "ttThese are a few words :) ... ";
$trimmed = rtrim($text);
// $trimmed = "ttThese are a few words :) ..."
$trimmed = rtrim($text," t.");
// $trimmed = "ttThese are a few words :)"
$clean = rtrim($binary,"x00..x1F");
// trim the ASCII control characters at the end of $binary 
// (from 0 to 31 inclusive)
?>

（编辑：李大同）

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