Failed to convert date timestamp to date format? Is there any other way?

Question

$now = date('Ymd',2375107200);
dump($now);

错误提示："date() expects parameter 2 to be integer, float given"

Answer 1

php date function is limited to January 1, 1970 to January 19, 2038 in some systems (such as Windows)

Solution http://www.jquerycn.cn/a_14366 (Saw it online)