How php calculates the difference between two timestamps by a few days

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Php calculates the difference between the two timestamps by several days: 1, subtract the two timestamps to get the time difference; 2, divide the time difference by the total number of seconds of a day "86400", and use the floor () function to round off, the syntax "floor (time difference / 86400)".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Php calculates the difference between the two timestamps by a few days

Realize the idea:

Subtract the two timestamps to get the time difference

Divide the time difference by the total seconds of the day (24,60,60,86400)

Implementation code:

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