Delete the directory and subdirectories and files under the directory

<?php
$Directory = "a/b";
function deleteDir($Directory){
	//检查目录是否存在，不存在则退出程序
	if(is_dir($Directory)){
		//打开目录
		$handle = openDir($Directory);
		//循环遍历目录
		while(($file_name = readdir($handle))!==false){
			//文件路径
			$file_path = $Directory.DIRECTORY_SEPARATOR.$file_name;
			//如果目录为 . 或 .. 则不执行下面代码
			if($file_name!="." && $file_name!=".."){
				//如果是目录
				if(is_dir($file_path)){
					//调用函数本身，递归遍历所有目录和文件
					deleteDir($file_path);
				}else{
					//删除文件
					unlink($file_path);
				}
			}
		}
		//关闭文件
		closedir($handle);
		//删除目录
		rmdir($Directory);
	}
 
}
deleteDir($Directory);
?>

The above introduces the deletion of directories and subdirectories and files under the directory, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.