文件的PHP错误为“未定义的索引扩展”pathinfo

Question

遇到PHP错误

  

严重性：注意

     

消息：未定义的索引：扩展名

     

文件名：vadmin / ajax.php

     

行号：88

这是我的代码

$org_filename = $_FILES['userfile']['name'];
        $path_parts = pathinfo($org_filename);
        $file_extension = $path_parts['extension'];
        /***** end extracting file extension ******/

        $config['upload_path'] = './uploads/news';
        $config['allowed_types'] = 'gif|jpg|png';
        $config['max_size'] = 1024 * 1000;       
        $final_file_name = $config['file_name'] = 'news_'.time().'.'.$file_extension;

Answer 1

尝试在pathinfo()

中传递PATHINFO_EXTENSION

$org_filename = $_FILES['userfile']['name'];
$file_extension = pathinfo($org_filename, PATHINFO_EXTENSION);

或substr()： -

$file_extension = substr($org_filename, strrpos($org_filename, '.')+1);