In this article, you will learn how to reset the directory handle in PHP. The rewinddir() function in PHP resets the directory handle created by opendir(). It clears all the options applied to the handle and return to its very first state.
what is the syntax of the REWINDDIR() function in php?
rewinddir(dir)| Parameter | Description |
|---|---|
| dir | Optional. Specifies the directory handle resource previously opened with opendir(). If this parameter is not specified, the last link opened by opendir() is assumed |
examples of the REWINDDIR() function
Example 1. In this example, we open a directory, list its files, reset directory handle, list its files once again, then close.
<?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);
}
}
?>
