本文介绍了一个用于从字符串末尾移除空白字符或其他指定字符的功能。通过使用 rtrim 函数，可以轻松地删除字符串结尾处的空格、制表符、换行符等。示例代码展示了如何去除路径字符串末尾的斜杠。
string rtrim ( string $str [, string $charlist ] )
Strip whitespace (or other characters) from the end of a string
" " (ASCII 32 (0x20)), an ordinary space.
"\t" (ASCII 9 (0x09)), a tab.
"\n" (ASCII 10 (0x0A)), a new line (line feed).
"\r" (ASCII 13 (0x0D)), a carriage return.
"\0" (ASCII 0 (0x00)), the NUL-byte.
"\x0B" (ASCII 11 (0x0B)), a vertical tab.
dir
Strip whitespace (or other characters) from the end of a string
" " (ASCII 32 (0x20)), an ordinary space.
"\t" (ASCII 9 (0x09)), a tab.
"\n" (ASCII 10 (0x0A)), a new line (line feed).
"\r" (ASCII 13 (0x0D)), a carriage return.
"\0" (ASCII 0 (0x00)), the NUL-byte.
"\x0B" (ASCII 11 (0x0B)), a vertical tab.
<?php
echo rtrim('dir/','/');
?>dir
扫一扫
699
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
