PHP | fileperms() Function

PHP fileperms() Function


Hello dear readers! welcome back to another edition of our tutorial on PHP. In this tutorial guide, we are going to be discussing about the PHP fileperms() Function.

The fileperms() function returns permission for a file or directory.

Syntax

Following below is the syntax to use this function -

int fileperms ( string $filename )


Return Value

It returns permission as a number on success or false on failure.

Example1

Try out the below example -

<?php
   echo substr(sprintf("%o", fileperms("/PhpProject/sample.txt")), -4);
?>

Output

When the above code is executed, it will produce the following result -

0666

Example2
Try out the below example -

<?php
   $perms = fileperms("/PhpProject/sample.txt");

   switch($perms & 0xF000) {
      case 0xC000: // socket
         $info = 's';
         break;
      case 0xA000: // symbolic link
         $info = 'l';
         break;
      case 0x8000: // regular
         $info = 'r';
         break;
      case 0x6000: // block special
         $info = 'b';
         break;
      case 0x4000: // directory
         $info = 'd';
         break;
      case 0x2000: // character special
         $info = 'c';
         break;
      case 0x1000: // FIFO pipe
         $info = 'p';
         break;
      default: // unknown
         $info = 'u';
   }

   // Owner
   $info .= (($perms & 0x0100) ? 'r' : '-');
   $info .= (($perms & 0x0080) ? 'w' : '-');
   $info .= (($perms & 0x0040) ?
            (($perms & 0x0800) ? 's' : 'x' ) :
            (($perms & 0x0800) ? 'S' : '-'));

   // Group
   $info .= (($perms & 0x0020) ? 'r' : '-');
   $info .= (($perms & 0x0010) ? 'w' : '-');
   $info .= (($perms & 0x0008) ?
            (($perms & 0x0400) ? 's' : 'x' ) :
            (($perms & 0x0400) ? 'S' : '-'));

   echo $info;
?>

Output
When the above code is executed, it will produce the following result -

rrw-rw-


Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the PHP filesize() Function.

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