What is the purpose of the opendir() and readdir() functions in PHP?

The opendir() function in PHP is used to open a directory handle, allowing you to read the contents of a directory. The readdir() function is then used to read the next entry from the directory handle opened by opendir(). These functions are commonly used to iterate through the files in a directory and perform operations on them. 

$dir = "/path/to/directory";
if ($handle = opendir($dir)) {
    while (false !== ($file = readdir($handle))) {
        echo "$file\n";
    }
    closedir($handle);
}

Keywords

opendir readdir file handling directory PHP

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