PHP Tutorial - PHP opendir() Function

Definition

The opendir() function opens a directory handle.

Syntax

PHP opendir() Function has the following syntax.

opendir(path,context);

Parameter

Parameter	Is Required	Description
path	Required.	Directory path to be opened
context	Optional.	Context of the directory handle.

Return

PHP opendir() Function returns the directory handle resource on success. FALSE on failure.

Example

Open a directory, read its contents, then close:


<?php/* w ww . j a va 2 s  .  c  o m*/
$dir = "/images/";

// Open a directory, and read its contents
if (is_dir($dir)){
  if ($dh = opendir($dir)){
    while (($file = readdir($dh)) !== false){
      echo "filename:" . $file . "\n";
    }
    closedir($dh);
  }
}
?>

Example 2

The following code shows how to open a directory, list its files, reset directory handle, list its files once again, then close.


/*from   w w w  . j ava2 s . c  o  m*/
<?php
   $dir = "/images/";

   // Open a directory, and read its contents
   if (is_dir($dir)){
     if ($dh = opendir($dir)){
       // List files in images directory
       while (($file = readdir($dh)) !== false){
         echo "filename:" . $file . "<br>";
       }
       rewinddir();
       // List once again files in images directory
       while (($file = readdir($dh)) !== false){
         echo "filename:" . $file . "<br>";
       }
       closedir($dh);
     }
   }
?>