I have a weird whitespaces in string, white spaces are not white spaces. I have a problem with converting them with regex and str_replace i.e.
我有一个奇怪的白色字符串，白色的空格不是白色的空格。我有一个问题，用regex和str_replace来转换它们。
echo str_replace(' ','_',$string);
any ideas how to fix it? utf8_encode is also not working, regex \s either, when you copy this text to Notepad++ it shows as
有什么好办法吗?当您将此文本复制到Notepad++时，它也显示为
Ê
instead of white space.
而不是空白。
What I am trying to achieve is to run this regex
我要实现的是运行这个regex
preg_replace('/[^a-z0-9 ]/i','',$string)
but since those 'whitespaces' are not a whitespaces they are being removed as well.
但由于这些“白空间”不是白空间，它们也被移除。
1 个解决方案
#1
3
I think I got it, from PHP site:
我想我是从PHP网站得到的:
You might wonder why
您可能想知道为什么
trim(html_entity_decode(' '));
doesn't reduce the string to an empty string, that's because the ' ' entity is not ASCII code 32 (which is stripped by trim()) but ASCII code 160 (0xa0) in the default ISO 8859-1 characterset.
没有将字符串减少为空字符串，这是因为“实体”不是ASCII码32(被trim()删除了)，但是在默认的ISO 8859-1字符集中，ASCII码160 (0xa0)。
#1
3
I think I got it, from PHP site:
我想我是从PHP网站得到的:
You might wonder why
您可能想知道为什么
trim(html_entity_decode(' '));
doesn't reduce the string to an empty string, that's because the ' ' entity is not ASCII code 32 (which is stripped by trim()) but ASCII code 160 (0xa0) in the default ISO 8859-1 characterset.
没有将字符串减少为空字符串，这是因为“实体”不是ASCII码32(被trim()删除了)，但是在默认的ISO 8859-1字符集中，ASCII码160 (0xa0)。