trim,rtrim,ltrim详解
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
$str = '123,333,234,'; echo rtrim($str, ','); <?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) ?>
posted on 2018-05-20 10:12 running-fly 阅读(399) 评论(0) 编辑 收藏 举报