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PHP字符过滤函数去除字符串最后一个逗号(rtrim)

  • 时间:2021-02-15 11:32 编辑: 来源: 阅读:
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摘要:PHP字符过滤函数去除字符串最后一个逗号(rtrim)
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
[u]复制代码[/u] 代码如下:
$str = '123,333,234,'; echo rtrim($str, ',');
[b]rtrim实例代码2 [/b]
[u]复制代码[/u] 代码如下:
<?php $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) ?>
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