PHP traverses TXT files in a directory and sorts them by time

Traverse txt files in the directory

Example:

//遍历目录下文件方法
function printdir($dir)
{
	$files = array();
	//opendir() 打开目录句柄
	if($handle = @opendir($dir)){
	//readdir()从目录句柄中（resource，之前由opendir()打开）读取条目,
	// 如果没有则返回false
		while(($file = readdir($handle)) !== false){//读取条目
			if( $file != ".." && $file != "."){//排除根目录
				if(is_dir($dir . "/" . $file)) {//如果file 是目录，则递归
					$files[$file] = printdir($dir . "/" . $file);
				} else {
					//获取文件修改日期
					$filetime = date('Y-m-d H:i:s', filemtime($dir . "/" . $file));
					//文件修改时间作为健值
					$files[$filetime] = $file;
				}
			}
		}
		@closedir($handle);
		return $files;
	}
}

Online video tutorial recommendation:php video tutorial

Sort by time based on the returned array

Example:

 //根据修改时间对数组排序
function arraysort($aa) {
	if( is_array($aa)){
		ksort($aa);
		foreach($aa as $key => $value) {
			if (is_array($value)) {
				$arr[$key] = arraysort($value);
			} else {
				$arr[$key] = $value;
			}
		}
		return $arr;
	} else {
		return $aa;
	}
}

$dir = "/php";
//输出 /php 下所有文件
print_r(arraysort(printdir($dir)));

Related article tutorial recommendations:php tutorial

The above is the detailed content of PHP traverses TXT files in a directory and sorts them by time. For more information, please follow other related articles on the PHP Chinese website!