aboutsummaryrefslogtreecommitdiffstats
path: root/include/datetime.php
blob: f75193b1bdb8cc8be85bb4bfda608c01ea337434 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
<?php

if(! function_exists('timezone_cmp')) {
function timezone_cmp($a, $b) {
	if(strstr($a,'/') && strstr($b,'/')) {
		if ($a == $b) return 0;
		return ($a < $b) ? -1 : 1;
	}
	if(strstr($a,'/')) return -1;
	if(strstr($b,'/')) return  1;
	if ($a == $b) return 0;
	return ($a < $b) ? -1 : 1;
}}


if(! function_exists('select_timezone')) {
function select_timezone($current = 'America/Los_Angeles') {

	$timezone_identifiers = DateTimeZone::listIdentifiers();
	
	$o ='<select id="timezone_select" name="timezone">';

	usort($timezone_identifiers, 'timezone_cmp');
	$continent = '';
	foreach($timezone_identifiers as $value) {
		$ex = explode("/", $value);
		if(count($ex) > 1) {
			if($ex[0] != $continent) {
				if($continent != '')
					$o .= '</optgroup>';
				$continent = $ex[0];
				$o .= "<optgroup label=\"$continent\">";
			}
			if(count($ex) > 2)
				$city = substr($value,strpos($value,'/')+1);
			else
				$city = $ex[1];
		}
		else {
			$city = $ex[0];
			if($continent != 'Miscellaneous') {
				$o .= '</optgroup>';
				$continent = 'Miscellaneous';
				$o .= "<optgroup label=\"$continent\">";	
			}
		}
		$city = str_replace('_', ' ', $city);
		$selected = (($value == $current) ? " selected=\"selected\" " : "");
		$o .= "<option value=\"$value\" $selected >$city</option>";
	}    
	$o .= '</optgroup></select>';
	return $o;
}}


if(! function_exists('datetime_convert')) {
function datetime_convert($from = 'UTC', $to = 'UTC', $s = 'now', $fmt = "Y-m-d H:i:s") {
  $d = new DateTime($s, new DateTimeZone($from));
  $d->setTimeZone(new DateTimeZone($to));
  return($d->format($fmt));
}}



if(! function_exists('datesel')) {
function datesel($pre,$ymin,$ymax,$allow_blank,$y,$m,$d) {

	$o = '';
	$o .= "<select name=\"{$pre}year\" class=\"{$pre}year\" size=\"1\">";
	if($allow_blank) {
		$sel = (($y == '') ? " selected=\"selected\" " : "");
		$o .= "<option value=\"\" $sel></option>";
	}

	for($x = $ymin; $x <= $ymax; $x ++) {
		$sel = (($x == $y) ? " selected=\"selected\" " : "");
		$o .= "<option value=\"$x\" $sel>$x</option>";
	}
  
	$o .= "</select>-<select name=\"{$pre}month\" class=\"{$pre}month\" size=\"1\">";
	for($x = 1; $x <= 12; $x ++) {
		$sel = (($x == $m) ? " selected=\"selected\" " : "");
		$o .= "<option value=\"$x\" $sel>$x</option>";
	}

	$o .= "</select>-<select name=\"{$pre}day\" class=\"{$pre}day\" size=\"1\">";
	for($x = 1; $x <= 31; $x ++) {
		$sel = (($x == $d) ? " selected=\"selected\" " : "");
		$o .= "<option value=\"$x\" $sel>$x</option>";
	}

	$o .= "</select>";
	return $o;
}}


// TODO rewrite this buggy sucker
function relative_date($posted_date) {

	$localtime = datetime_convert('UTC',date_default_timezone_get(),$posted_date); 
    
	$in_seconds = strtotime($localtime);

    	$diff = time() - $in_seconds;
    
	$months = floor($diff/2592000);
    	$diff -= $months*2419200;
    	$weeks = floor($diff/604800);
    	$diff -= $weeks*604800;
    	$days = floor($diff/86400);
    	$diff -= $days*86400;
    	$hours = floor($diff/3600);
    	$diff -= $hours*3600;
    	$minutes = floor($diff/60);
    	$diff -= $minutes*60;
    	$seconds = $diff;


    if ($months>0) {
        // over a month old,
        return 'over a month ago';
    } else {
        if ($weeks>0) {
            // weeks and days
            $relative_date .= ($relative_date?', ':'').$weeks.' week'.($weeks!=1 ?'s':'');

        } elseif ($days>0) {
            // days and hours
            $relative_date .= ($relative_date?', ':'').$days.' day'.($days!=1?'s':'');

        } elseif ($hours>0) {
            // hours and minutes
            $relative_date .= ($relative_date?', ':'').$hours.' hour'.($hours!=1?'s':'');

        } elseif ($minutes>0) {
            // minutes only
            $relative_date .= ($relative_date?', ':'').$minutes.' minute'.($minutes!=1?'s':'');
        } else {
            // seconds only
            $relative_date .= ($relative_date?', ':'').$seconds.' second'.($seconds!=1?'s':'');
        }
    }
    // show relative date and add proper verbiage
    return $relative_date.' ago';
}