PHP implements how long has passed to display time, PHP has passed

PHP implements how long has passed to display time, PHP has passed_PHP tutorial

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Release： 2016-07-13 09:51:42

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PHP implements how to display time in the form of how much time has passed, php has passed

The example in this article describes how php displays time in the form of how much time has passed. Share it with everyone for your reference. The details are as follows:

This displays how much time has passed in a more readable way, for example: 10 seconds from now, 1 day from now, etc.

function time_is_older_than($t, $check_time){
  $t = strtolower($t);
  $time_type = substr(preg_replace('/[^a-z]/', '', $t), 0, 1);
  $val = intval(preg_replace('/[^0-9]/', '', $t));
  $ts = 0;
  // (s)econds, (m)inutes, (d)ays, (y)ears
  if ($time_type == 's'){ $ts = $val; }
  else if ($time_type == 'm'){ $ts = $val * 60; }
  else if ($time_type == 'h'){ $ts = $val * 60 * 60; }
  else if ($time_type == 'd'){ $ts = $val * 60 * 60 * 24; }
  else if ($time_type == 'y'){ $ts = $val * 60 * 60 * 24 * 365; }
  else { die('Unknown time format given!'); }
  if ($check_time < (time()-$ts)){ return true; }
  return false;
}

//使用范例：
// timestamp to test: 
// (could be from an database or something else)
$time = 1146722922;
// long if check:
if (time_is_older_than('30m', $time)){
  print 'The given timestamp: ' . date('l dS \of F Y h:i:s A',$time);
  print " - is older than 30 minutes<br/>\n";
}
else {
  print 'The given timestamp: ' . date('l dS \of F Y h:i:s A',$time);
  print " - is NOT older than 30 minutes<br/>\n";
}
// short checks:
if (time_is_older_than('10s', $time)){ print "Is older than 10 seconds<br/>\n"; }
if (time_is_older_than('200m', $time)){ print "Is older than 200 minutes<br/>\n"; }
if (time_is_older_than('2h', $time)){ print "Is older than 2 hours<br/>\n"; }
if (time_is_older_than('4d', $time)){ print "Is older than 4 days<br/>\n"; }
if (time_is_older_than('1y', $time)){ print "Is older than one year<br/>\n"; }

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I hope this article will be helpful to everyone’s PHP programming design.