调用知乎接口，获取当天新闻，抛弃图片保存本地的代码，仅保留内容获取部分。

<?php

echo zhihu60();

function zhihu60() {

$date = file_get_contents(\'https://www.zhihu.com/api/v4/columns/c_1261258401923026944/items\');

$date = json_decode($date);

$content = $date->data[0]->content;

$content = preg_replace(\'/(<a.*?>[sS]*?<\\/a>)/\', \'\', $content);

$content = strip_tags($content, \'<p>\');

return $content;

};