Created
November 14, 2016 16:22
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How many days and hours left from a date. For PHP 5.2 and lower ( without DateTime::diff() )
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<?php | |
function get_timespan_string($older, $newer) { | |
$Y1 = $older->format('Y'); | |
$Y2 = $newer->format('Y'); | |
$Y = $Y2 - $Y1; | |
$m1 = $older->format('m'); | |
$m2 = $newer->format('m'); | |
$m = $m2 - $m1; | |
$d1 = $older->format('d'); | |
$d2 = $newer->format('d'); | |
$d = $d2 - $d1; | |
$H1 = $older->format('H'); | |
$H2 = $newer->format('H'); | |
$H = $H2 - $H1; | |
$i1 = $older->format('i'); | |
$i2 = $newer->format('i'); | |
$i = $i2 - $i1; | |
$s1 = $older->format('s'); | |
$s2 = $newer->format('s'); | |
$s = $s2 - $s1; | |
if($s < 0) { | |
$i = $i -1; | |
$s = $s + 60; | |
} | |
if($i < 0) { | |
$H = $H - 1; | |
$i = $i + 60; | |
} | |
if($H < 0) { | |
$d = $d - 1; | |
$H = $H + 24; | |
} | |
if($d < 0) { | |
$m = $m - 1; | |
$d = $d + get_days_for_previous_month($m2, $Y2); | |
} | |
if($m < 0) { | |
$Y = $Y - 1; | |
$m = $m + 12; | |
} | |
$timespan_string = create_timespan_string($Y, $m, $d, $H, $i, $s); | |
return $timespan_string; | |
} | |
function get_days_for_previous_month($current_month, $current_year) { | |
$previous_month = $current_month - 1; | |
if($current_month == 1) { | |
$current_year = $current_year - 1; //going from January to previous December | |
$previous_month = 12; | |
} | |
if($previous_month == 11 || $previous_month == 9 || $previous_month == 6 || $previous_month == 4) { | |
return 30; | |
} | |
else if($previous_month == 2) { | |
if(($current_year % 4) == 0) { //remainder 0 for leap years | |
return 29; | |
} | |
else { | |
return 28; | |
} | |
} | |
else { | |
return 31; | |
} | |
} | |
function create_timespan_string($Y, $m, $d, $H, $i, $s) | |
{ | |
$timespan_string = ''; | |
$found_first_diff = false; | |
if($Y >= 1) { | |
$found_first_diff = true; | |
$timespan_string .= pluralize($Y, 'year').' '; | |
} | |
if($m >= 1 || $found_first_diff) { | |
$found_first_diff = true; | |
$timespan_string .= pluralize($m, 'month').' '; | |
} | |
if($d >= 1 || $found_first_diff) { | |
$found_first_diff = true; | |
$timespan_string .= pluralize($d, 'day').' '; | |
} | |
if($H >= 1 || $found_first_diff) { | |
$found_first_diff = true; | |
$timespan_string .= pluralize($H, 'hour').' '; | |
} | |
if($i >= 1 || $found_first_diff) { | |
$found_first_diff = true; | |
$timespan_string .= pluralize($i, 'minute').' '; | |
} | |
if($found_first_diff) { | |
$timespan_string .= 'and '; | |
} | |
$timespan_string .= pluralize($s, 'second'); | |
return $timespan_string; | |
} | |
function pluralize( $count, $text ) | |
{ | |
return $count . ( ( $count == 1 ) ? ( " $text" ) : ( " ${text}s" ) ); | |
} | |
?> |
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