如何替换上传文件的文件名中的空格
问题描述：
我正在制作一个 SWF 上传器并完成我的 HTML 表单.
I'm making a SWF uploader and have my HTML form done.
在我上传名称中包含空格的 SWF 文件之前，它完全正常.
It works totally fine until I upload a SWF file with spaces in the name.
如何用下划线替换空格?
How can I replace whitespace with underscores?
我试过了...
str_replace(" ","_", $file);
……还有……
preg_replace(" ","_", $file);
答
如何用下划线替换空格?
How can I replace whitespace with underscores?
\s 字符类将匹配空白字符.我添加了 + 量词以将多个空格折叠为一个 _.如果您不希望那样，请删除 +.
The \s character class will match whitespace characters. I've added the + quantifier to collapse multiple whitespace to one _. If you don't want that, remove the +.
$file = preg_replace('/\s+/', '_', $file);