The use of PHP time and date dates with detailed and differentiated _php skills

The usage difference between PHP time and date dates

1. Time () function

The time () function in PHP, using the echo output, is a very long integer that contains the date and times and is a computed value. If you want to get a date format such as y-m-d h:i:s, you can use the date method:

Date (' y-m-d h:i:s ', Time ());

echo output It can be obtained: 2016-1-5 10:20:11

2, date format and string

We can build a string of date format, such as: 2015-1-1 10:20:11. You can use the Strtotime () function to convert this string to a value in time format. Such as:

$time 1 = strtotime (' 2016-1-5 10:20:11 ');

This value, echo output, gets a long integer.

So, you can understand this:

1. The date is saved in PHP as a long shaping number. It can be converted to a date (estimate and date) type through the date function, and the date type can directly output the string.
2. Date strings can be converted to time format (that is, long integers) using the Strtotime () function.
3. Date format, you can force type conversions through int, and convert growth integers.

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