What does it mean when the icon_strlen fails on bad character sequences specifically character sequences
is what I want to know. Thanks
PHP iconv_strlen问题
- 写回答
- 好问题 0 提建议
- 追加酬金
- 关注问题
- 邀请回答
-
1条回答 默认 最新
- drdyszuy488152 2011-06-13 11:31关注
A
character sequence
is a series of bytes. When using UTF-8 not all combinations of bytes are valid.The byte sequence
\xc2\xbc
forms the Unicode characterU+00BC
which is theVULGAR FRACTION ONE QUARTER
symbol (¼) when using UTF-8 encoding.The byte sequence
\xe2\x88\x9c
forms the Unicode characterU+221C
which is theFOURTH ROOT
symbol (∜) when using UTF-8 encoding.A bad character sequence for UTF-8 encoding would be any byte combination that doesn't fit into the required schema for UTF-8 byte streams, e.g. the byte sequence
\xbc\xbc
would be illegal because two byte characters must have110xxxxx
in the first byte but\xbc
is10111100
written as bits.本回答被题主选为最佳回答 , 对您是否有帮助呢?解决 无用评论 打赏 举报
悬赏问题
- ¥15 关于大棚监测的pcb板设计
- ¥20 sim800c模块 at指令及平台
- ¥15 stm32开发clion时遇到的编译问题
- ¥15 lna设计 源简并电感型共源放大器
- ¥15 如何用Labview在myRIO上做LCD显示?(语言-开发语言)
- ¥15 Vue3地图和异步函数使用
- ¥15 C++ yoloV5改写遇到的问题
- ¥20 win11修改中文用户名路径
- ¥15 win2012磁盘空间不足,c盘正常,d盘无法写入
- ¥15 用土力学知识进行土坡稳定性分析与挡土墙设计