PHP检查字符串是否为SQL时间戳


PHP check if string is SQL timestamp

我需要创建一个PHP函数来检查字符串是否是SQL时间戳yyyy-mm-dd hh:mm:ss[.ffff]。有人这样做过吗?建议?

$match_pattern = "/('d{4})-('d{2})-('d{2})T('d{2}:'d{2}:'d{2}-'d{2}:'d{2})/";