As we all know, PHP's
time();mktime();
function can generate a 10-bit UNIX timestamp, but in JavaScript, use the
new Date().getTime()
The timestamp of the function is 13 bits accurate to milliseconds.So would it be possible to implement a JavaScript-style Unix timestamp using PHP?
PS: The PHP code is required to run without any extra output, but simply output a
1, timestamp timestamp refers to the GMT January 01, 1970 00:00 00 seconds (Beijing time January 01, 1970 08:00 00 seconds) up to now the total number of seconds.
2, get the time stamp of the current time
1 2 3 4 5 6 7 8 9 10 11-12
Get current time Let now = NSDate ()///Create a date formatter let Dformatter = NSDateFormatter () Dformatter.dateformat = "yyyy year mm month DD Day HH:MM:SS Pr
(Conversion) log4j: WARN No appenders cocould be found for logger solution, log4jappenders
When using Log4j, we always see:
1 log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory).2 log4j:WARN Please initialize the log4j system properly.
This problem occurs because the configuration of our l
1. Configure Log4j.propertiesLog4j.rootlogger=info,debug,logstashlog4j.appender.logstash= org.apache.log4j.net.socketappenderlog4j.appender.logstash.port=4560log4j.appender.logstash.remotehost= 10.0.0.5log4j.appender.logstash.reconnetiondelay=60000log4j.appender.logstash.locationinfo=true2. Modify the Logstash Input component (favblog-log4j.conf) to output the log to Elasticsearchinput{log4j{host = "10.0.0.5" mode = "Server" type = "
Label: TimeStamp The SQL Server timestamp data type is independent of time and date. SQL Server Timestamp is a binary number that indicates the relative order in which data modifications occur in the database. The implementation of the timestamp data type was originally intended to support the SQL Server recovery algor
4. Configuration
Inserting log requests into the application code requires a lot of pre-planning and final efforts. It is shown that about 4% of the code is used for output.
Therefore, programs of moderate size are embedded with thousands of log output statements. To manage the output status of these logs in a way that does not require manual management, it is imperative to number and standardize the log output.
Log4j is fully configurable in the pro
(). Gettimeinmillis ()/1000); System.out.println (NewDate (). GetTime ()/1000); //accurate to milliseconds//gets the time of the specified formatSimpleDateFormat DF =NewSimpleDateFormat ("Yyyy-mm-dd HH:mm:ss:SSS"); //Output StringSystem.out.println (Df.format (NewDate ())); //gets the specified time Date object, which is a timestamp and is only accurate to secondsSystem.out.println (NewDate (1510369871)); Df.getcalendar (); //gets the
Here to note that the time stamp of JS is 13 bits, PHP timestamp is 10 bits, the conversion function is as follows:
Copy Code code as follows:
var nowtime = (new Date). GetTime ();//Current time stamp * *
/* Conversion time, calculated difference * *
function Comptime (begintime,endtime) {
var secondnum = parseint ((endtime-begintime*1000)/1000);//Calculate timestamp difference
if (secondnum>=
MySQL 5.6.5 The following version does not support multiple timestamp and is set to default Current_timestampThe alternative is to use the trigger create TABLE ' example ' (' id "INTEGER UNSIGNED not NULL auto_increment, ' created ' TIMESTAMP not null DEFAULT current_timestamp , ' lastupdated ' DATETIME not NULL, PRIMARY KEY (' id =INNODB; DROP TRIGGER if EXISTS " insert_example_trigger ';d rop trigg
AbstractSometimes, how can I solve the problem that the timestamp does not match?
IntroductionEnvironment: US us II 7.2 SP1 + niosii eds 7.2 SP1 + de2 (Cyclone II ep2c35f627c6)
At some time, the following warning messages may be generated for the niosio II:
Using Cable
"
USB-blaster [USB-0]
"
,
Device
1
,
Instance 0x00Pausing target processor: OKReading System ID at address 0x01101038:ID value does not match: read 0 xffffffff
;
with BACKUP controlfile option must be completedsql> ALTER DATABASE open resetlogs; Sql>To view the recoverable timestamp or SCN point, execute the following SQL statement:Select Scn,to_char (TIME_DP, ' Yyyy-mm-dd hh24:mi:ss ') from Sys.smon_scn_time Order by To_char (TIME_DP, ' Yyyy-mm-dd hh24: Mi:ss ') desc;It is not recommended to use this method to recover data. Method Two:Empty the data table you want to recover before you manipulate the recover
PHP gets the start timestamp and end timestamp of today, yesterday, last week, this month, mainly using PHP's time function mktime. Let's start with a straight-through example to illustrate how to use Mktime to get the start timestamp and end timestamp for today, yesterday, last week, this month, and then introduce the
When you create a table with a field type of timestamp, the default build statement for that field is:CREATE TABLE ' test ' ( ' id ' int (one) default null, ' ctime ' timestamp not null default Current_timestamp on UPDATE CU Rrent_timestamp) Engine=innodb DEFAULT CHARSET=GBKIf there are two field types timestamp, the resulting statement is:CREATE TABLE ' test '
Java
Time
Javascript
Math. Round (new date (). gettime ()/1000)The unit of the value returned by gettime () is millisecond.
Microsoft. NET/C #
Epoch = (datetime. Now. touniversaltime (). ticks-621355968000000000)/10000000
MySQL
Select unix_timestamp (now ())
Perl
Time
PHP
Time ()
PostgreSQL
Select extract (epoch from now ())
Python
Import time first and then time. Time ()
Ruby
Obtain UNIX
php5.1 the time stamp above and the actual time difference 8 hours, the solution is as follows1, the simplest way is not to use the php5.1 versionObviously this is not the preferred Method!!! 2, modify PHP.ini. Open php.ini Find Date.timezone remove the previous semicolon = after adding Asia/shanghai, restart Apache server can--The disadvantage is that if the program put on someone else's server, can not modify the php.ini, it will not be. 3, add the initialization statement of the time in the p
The simple configuration of log4j makes log4j more and more applications: the log4j configuration file provides a full set of functions such as output to the console, files, rollback files, sending log emails, output to database log tables, and custom tags. Log4j is enough if you choose one or two of them. rootlogger =
When multiple timestamp are present in a table and one is set to Current_timestamp, you often encounter#1293-incorrect table definition; There can is only onetimestamp column with Current_timestamp in DEFAULT or on UpdateclauseThe reason is that when you set the timestamp to on Updatecurrent_timestamp, the other timestamp fields need to explicitly set the default
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