PHP Implementation time Axis function example

This article describes how to use PHP to display time as "just", "5 minutes Ago", "Yesterday 10:23" and so on, rather than displaying the exact date and time.
This article will describe how to implement a time conversion based on the timeline.
First we need to understand several functions of time:
Time (): Returns the current Unix timestamp
Date (): Formats a local time/date.
Application Examples:

Date ("Y-m-d h:i:s", Time ());

Format current time, output: 2010-10-11 05:27:35
Strtotime (): Resolves a date-time description of any English text to a Unix timestamp.
Application Examples:

Echo strtotime ("+1 Day"), "\ n";

Output timestamp 1 days ago: 1286861475
Date_default_timezone_set (): Sets the default time zone to use.
Generally we set up Beijing time: Date_default_timezone_set ("PRC");
After understanding the above functions, we write the timeline function:
The principle of this function is to compare the current time of the system with the target time, to get a difference, and then compare the difference with the time range (converted to seconds), according to its output in the time axis different results (such as: 5 minutes ago). For ease of calculation, we convert the time to a UNIX timestamp.

Function trantime ($time)  {       $rtime  = date ("M-d h:i", $time

);       $htime  = date ("H:i", $time);             $time  = time ()  -  $time;        if   ($time  < 60)  {           $str  =  ' Just ';      }      elseif  ($time  < 60 *

 60)  {           $min  = floor ($time/60);           $str  =  $min. ' Minutes ago ';     &nbsp}

      elseif  ($time  < 60 * 60 * 24)  {           $h  = floor ($time/(60*60));           $str  =  $h. ' Hours ago   ' $htime;      }      elseif  ($time  < 60 * 60 * 24 * 3)

 {           $d  = floor ($time/(60*60*24));          if ($d ==1)                $str  =  ' yesterday   '. $rtime;           else              $str  =  ' the day before yesterday   '. $rtime;      }      else {            $str  =  $rtime;      }       return  $str; }

The parameter $time in the function trantime () must be a Unix timestamp, and if not, convert it to a UNIX timestamp using Strtotime (). The above code at a glance to understand, no more.
Call function, Direct output:

$times = "1286861696";

echo Trantime ($times);