100 lines
2.7 KiB
PHP
100 lines
2.7 KiB
PHP
<?php
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/**
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* A basic date_diff for PHP 5.2
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*
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* @author Michael Oldroyd <http://www.michaeloldroyd.co.uk/>
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*
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*/
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if(!function_exists('date_diff')) {
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class DateInterval {
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public $y;
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public $m;
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public $d;
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public $h;
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public $i;
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public $s;
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public $invert;
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public $days;
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public function format($format) {
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$format = str_replace('%R%y',
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($this->invert ? '-' : '+') . $this->y, $format);
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$format = str_replace('%R%m',
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($this->invert ? '-' : '+') . $this->m, $format);
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$format = str_replace('%R%d',
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($this->invert ? '-' : '+') . $this->d, $format);
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$format = str_replace('%R%h',
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($this->invert ? '-' : '+') . $this->h, $format);
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$format = str_replace('%R%i',
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($this->invert ? '-' : '+') . $this->i, $format);
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$format = str_replace('%R%s',
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($this->invert ? '-' : '+') . $this->s, $format);
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$format = str_replace('%y', $this->y, $format);
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$format = str_replace('%m', $this->m, $format);
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$format = str_replace('%d', $this->d, $format);
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$format = str_replace('%h', $this->h, $format);
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$format = str_replace('%i', $this->i, $format);
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$format = str_replace('%s', $this->s, $format);
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return $format;
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}
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}
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function date_diff(DateTime $date1, DateTime $date2) {
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$diff = new DateInterval();
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if($date1 > $date2) {
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$tmp = $date1;
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$date1 = $date2;
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$date2 = $tmp;
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$diff->invert = 1;
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} else {
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$diff->invert = 0;
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}
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$diff->y = ((int) $date2->format('Y')) - ((int) $date1->format('Y'));
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$diff->m = ((int) $date2->format('n')) - ((int) $date1->format('n'));
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if($diff->m < 0) {
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$diff->y -= 1;
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$diff->m = $diff->m + 12;
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}
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$diff->d = ((int) $date2->format('j')) - ((int) $date1->format('j'));
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if($diff->d < 0) {
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$diff->m -= 1;
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$diff->d = $diff->d + ((int) $date1->format('t'));
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}
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$diff->h = ((int) $date2->format('G')) - ((int) $date1->format('G'));
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if($diff->h < 0) {
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$diff->d -= 1;
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$diff->h = $diff->h + 24;
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}
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$diff->i = ((int) $date2->format('i')) - ((int) $date1->format('i'));
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if($diff->i < 0) {
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$diff->h -= 1;
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$diff->i = $diff->i + 60;
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}
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$diff->s = ((int) $date2->format('s')) - ((int) $date1->format('s'));
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if($diff->s < 0) {
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$diff->i -= 1;
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$diff->s = $diff->s + 60;
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}
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$start_ts = $date1->format('U');
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$end_ts = $date2->format('U');
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$days = $end_ts - $start_ts;
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$diff->days = round($days / 86400);
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if (($diff->h > 0 || $diff->i > 0 || $diff->s > 0))
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$diff->days += ((bool) $diff->invert)
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? 1
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: -1;
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return $diff;
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}
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}
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