PHP - Files informations

Overview

Those functions include:

• is_dir()
  Lets you know if the file whose name is passed as parameter is a directory. This function returns 1 if it is a directory, otherwise, it returns 0.
  Example:
     if (is_dir($file)) {
       echo "The file ".$file." is a directory";
     } else {
       echo "Le file ".$file." is not a directory";
     }

• is_executable()
  Lets you know if the file whose name is passed as parameter is executable. This function returns 1 if the file is executable, otherwise it will return 0.
  

• is_file()
  Lets you know if the file whose name is passed as a parameter does not correspond either to a directory or a symbolic link, and it exists on the server's hard drive.
  This function returns 1 if it is a file, and it is present on the disc, otherwise it will return 0.
  

• is_link()
  Lets you know if the file whose name is passed as a parameter corresponding to a symbolic link.
  This function returns 1 if it is a symlink, otherwise it will return 0.

   

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