How to use php readdir function

php The readdir function is used to read entries from a directory handle. Its syntax is "readdir(dir_handle)". If successful, it returns the entry name, and if it fails, it returns FALSE.

#php How to use the readdir function?

php readdir() function syntax

Function: Return the file name of the next file in the directory.

Syntax:

readdir(dir_handle)

Parameters:

dir_handle Optional. Specifies a directory handle resource previously opened by opendir(). If this parameter is not specified, the last link opened by opendir() is used.

Description:

If successful, return the entry name (file name), otherwise return FALSE.

php readdir() function usage example

<?php
$dir = "/phpstudy/WWW/20180414/";
// 打开目录，然后读取其内容
if ($dh = opendir($dir)){
        while (($file = readdir($dh)) !== false)
        {
            echo "filename:" . $file . "<br>";
        }
}
?>

This article is an introduction to the PHP readdir function. I hope it will be helpful to friends in need!

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