phpcms 判断第一个

<?php
// 假设 $articles 是一个包含文章信息的数组
$articles = [
    ['title' => '文章1', 'publish_time' => '2023-01-01'],
    ['title' => '文章2', 'publish_time' => '2023-01-02'],
    ['title' => '文章3', 'publish_time' => '2023-01-03']
];

// 找到发布时间最早的文章
$first_article = null;
$earliest_time = null;

foreach ($articles as $article) {
    if ($earliest_time === null || strtotime($article['publish_time']) < strtotime($earliest_time)) {
        $earliest_time = $article['publish_time'];
        $first_article = $article;
    }
}

// 输出第一篇文章的标题
if ($first_article) {
    echo '第一篇文章的标题是：' . $first_article['title'];
} else {
    echo '没有找到文章';
}
?>

// 统一时间格式
foreach ($articles as &$article) {
    $article['publish_time'] = date('Y-m-d', strtotime(str_replace(['-', '/'], ['-', '-'], $article['publish_time'])));
}
unset($article);