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php中is_file和file_exist的区别

WBOY
Release: 2016-06-13 10:44:43
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在PHP中,is_file和file_isexist是有很小区别的 
1) is_file: 
   $path ="/path/to/file/text.txt"; 
  if(file_exists($path)) 
    echo "File Exists"; 
  else 
    echo "File not Exists"; 
比如在这个例子中,文件存在会返回true,不存在返回false,但注意的是,假如传入一个 
正确的路径(比如一个文件目录),也会返回true: 
  $path ="/path/to/file"; 

2) file_isexist() 
   这个就不会了,真的是判断一个文件是否存在,假如传入上面的一个虽然看上去 
正确的路径,也是返回false的哦

作者“jackyrong”
 

source:php.cn
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