Considerations for converting Javascript timestamps and php timestamps _ basic knowledge

Note that the js timestamp is 13 BITs and the php timestamp is 10 bits. The conversion function is as follows, if you are interested, refer to the following. Note that the js timestamp is 13 BITs and the php timestamp is 10 bits. The conversion function is as follows:

The Code is as follows:

Var nowtime = (new Date). getTime ();/* Current timestamp */
/* Conversion time, calculate the difference value */
Function comptime (beginTime, endTime ){
Var secondNum = parseInt (endTime-beginTime * 1000)/1000); // calculate the time stamp difference
If (secondNum> = 0 & secondNum <60 ){
Return secondNum + 'Seconds ago ';
}
Else if (secondNum> = 60 & secondNum <3600 ){
Var nTime = parseInt (secondNum/60 );
Return nTime + 'minute ago ';
}
Else if (secondNum> = 3600 & secondNum <3600*24 ){
Var nTime = parseInt (secondNum/3600 );
Return nTime + 'hour before ';
}
Else {
Var nTime = parseInt (secondNum/86400 );
Return nTime + 'day before ';
}
}
T = comptime ("1324362556", nowtime); // timestamp is the timestamp sent by PHP through ajax.
Alert (t );