php根据时间顺序显示文章

sql = 'SELECT * FROM `table` ORDER BY created DESC';
//你的数据库驱动逻辑

//数据处理
if ($articles) {
    $res = [];
    foreach ($articles as $article) {
        $year = date('Y', $article['created']);
        $res[$year][] = $article; //以年为单位，作为数组索引，
    }
}

//最后输出结果类似这样
$res => [
    [2014] => [
        [0] => [
            //article 1
        ],
        [1] => [
            //article 2
        ]
    ],
    [2015] => [
        [0] => [
            //article 1
        ],
        [1] => [
            //article 2
        ]
    ]
]