How to convert date to string in php?

PHP date to string method: first find the difference between the two dates; then use JS to get the current date, and convert the normal date format into a timestamp. The code is [$year=(( int)substr("2008-12-04",0,4));】.

php method to convert date to string:

1. Find the difference between two dates

For example, the date difference between 2007-3-5 ~ 2007-3-6

echo abs(strtotime("2007-3-5") - strtotime("2007-3-6"))/60/60/24;
echo "天<br>";

2. JS to get the current date

var myDate = new Date();
myDate.getYear();        //获取当前年份(2位)
myDate.getFullYear();    //获取完整的年份(4位,1970-????)
myDate.getMonth();       //获取当前月份(0-11,0代表1月)
myDate.getDate();        //获取当前日(1-31)
myDate.getDay();         //获取当前星期X(0-6,0代表星期天)
myDate.getTime();        //获取当前时间(从1970.1.1开始的毫秒数)
myDate.getHours();       //获取当前小时数(0-23)
myDate.getMinutes();     //获取当前分钟数(0-59)
myDate.getSeconds();     //获取当前秒数(0-59)
myDate.getMilliseconds();    //获取当前毫秒数(0-999)
myDate.toLocaleDateString();     //获取当前日期
var mytime=myDate.toLocaleTimeString();     //获取当前时间
myDate.toLocaleString( );        //获取日期与时间

3. PHP date and timestamp conversion to each other

There are two types of PHP time: one is timestamp type(1228348800), the other isNormal date format(2008-12-4)

So there are two forms of saving to the database. I save the timestamp type as a string, which is more convenient.

Normal date type is saved as DATE type.

Please pay attention to these two. I usually use two types, and save the time type as DATE. I still keep Saved with timestamp, the data could not be written into the table. After debugging for a long time, I found out the error. The type was inconsistent and the data was not written into the library.

Convert 1228348800 to 2008-12-4 format code as follows:

$date3=date('Y-m-d H:i:s',"1228348800");

This is OK. If you still want to get hours, minutes and seconds, just change 'Y-m-d' , but please note that the PHP time still seems to have an error of 8 hours. If you add it, it will be OK.

The timestamp can be converted to a normal date. On the contrary, how can the normal date format be converted to a timestamp? , please look at the following code:

$year=((int)substr("2008-12-04",0,4));//取得年份
$month=((int)substr("2008-12-04",5,2));//取得月份
$day=((int)substr("2008-12-04",8,2));//取得几号
echo mktime(0,0,0,$month,$day,$year);

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