When uploading PHP files, we need to obtain the file name suffix and then make a simple file type judgment. The method of obtaining the file name suffix in PHP is very simple and there are many ways. Let me summarize it below.
Run result:
Directory name: /usr/www/html
File name: index.php
Extension: php
4.realpath -- Returns the normalized absolute path name
The php code is as follows:
Finally, pay attention to a little tip: the file path operators of different paths may be different. You can use "/" and "" under Windows,
Under Linux, you can only use "/", so when developing, it is recommended to use "/", as I wrote the file path above!
//Method 1:<🎜>
{ <🎜>
$file_name = substr($file_name, $dot+1); <🎜>
} <🎜>
return $file_name; <🎜>
} <🎜>
<🎜>
<🎜>
<🎜>
<🎜>?>
http://www.bkjia.com/PHPjc/633058.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/633058.htmlTechArticleWhen uploading php files, we need to obtain the file name suffix and then make a simple file type judgment, and in php files There are many ways to obtain a name suffix. Let me summarize it below...
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