How to solve the php time judgment

Php time is determined to be in a certain period of time. for example, if 2014521-454531 shows that the "senior member" Date exceeds 2014531, the "member has expired" is displayed. what should I do? ------ Solution -------------------- & lt ;? Phpif (time () & gt; strtotime (2014-5-21) & nbsp; & amp; & nbsp; time () & php time judgment
In a certain period of time, for example, if 2014/5/21-2014/5/31 shows that the "senior member" Date exceeds, "the member has expired" is displayed. how can this problem be solved?
------ Solution --------------------

 If (time ()> = strtotime ('2017-5-21 ') & time () <= strtotime ('2017-5-31 ')){
Echo 'VIP ';
} Else {
Echo 'Member expired ';
}
?>