PHP检查文件扩展名
问题描述：
我有一个上传脚本，需要检查文件扩展名，然后基于该文件扩展名运行单独的功能.有人知道我应该使用什么代码吗?
I have an upload script that I need to check the file extension, then run separate functions based on that file extension. Does anybody know what code I should use?
if (FILE EXTENSION == ???)
{
FUNCTION1
}
else if
{
FUNCTION2
}
答
pathinfo是您要寻找的
$file_parts = pathinfo($filename);
switch($file_parts['extension'])
{
case "jpg":
break;
case "exe":
break;
case "": // Handle file extension for files ending in '.'
case NULL: // Handle no file extension
break;
}