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1 | <?php |
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2 | |
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3 | /** |
4 | * date.php |
5 | * |
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6 | * Copyright (c) 1999-2003 The SquirrelMail Project Team |
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7 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
8 | * |
9 | * Takes a date and parses it into a usable format. The form that a |
10 | * date SHOULD arrive in is: |
11 | * <Tue,> 29 Jun 1999 09:52:11 -0500 (EDT) |
12 | * (as specified in RFC 822) -- 'Tue' is optional |
13 | * |
14 | * $Id$ |
15 | */ |
16 | |
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17 | require_once(SM_PATH . 'functions/constants.php'); |
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18 | |
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19 | /* corrects a time stamp to be the local time */ |
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20 | function getGMTSeconds($stamp, $gmt) { |
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21 | global $invert_time; |
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22 | |
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23 | /* date couldn't be parsed */ |
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24 | if ($stamp == -1) { |
25 | return -1; |
26 | } |
27 | |
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28 | switch($gmt) |
29 | { |
30 | case 'Pacific': |
31 | case 'PST': |
32 | $gmt = '-0800'; |
33 | break; |
34 | case 'Mountain': |
35 | case 'MST': |
36 | case 'PDT': |
37 | $gmt = '-0700'; |
38 | break; |
39 | case 'Central': |
40 | case 'CST': |
41 | case 'MDT': |
42 | $gmt = '-0600'; |
43 | break; |
44 | case 'Eastern': |
45 | case 'EST': |
46 | case 'CDT': |
47 | $gmt = '-0500'; |
48 | break; |
49 | case 'EDT': |
50 | $gmt = '-0400'; |
51 | break; |
52 | case 'GMT': |
53 | $gmt = '+0000'; |
54 | break; |
55 | case 'BST': |
56 | case 'MET': |
57 | $gmt = '+0100'; |
58 | case 'EET': |
59 | case 'IST': |
60 | case 'MET DST': |
61 | case 'METDST': |
62 | $gmt = '+0200'; |
63 | break; |
64 | case 'HKT': |
65 | $gmt = '+0800'; |
66 | break; |
67 | case 'JST': |
68 | case 'KST': |
69 | $gmt = '+0900'; |
70 | break; |
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71 | } |
72 | |
73 | if (substr($gmt, 0, 1) == '-') { |
74 | $neg = true; |
75 | $gmt = substr($gmt, 1, strlen($gmt)); |
76 | } else if (substr($gmt, 0, 1) == '+') { |
77 | $neg = false; |
78 | $gmt = substr($gmt, 1, strlen($gmt)); |
79 | } else { |
80 | $neg = false; |
81 | } |
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82 | |
83 | $difference = substr($gmt, 2, 2); |
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84 | $gmt = substr($gmt, 0, 2); |
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85 | $gmt = ($gmt + ($difference / 60)) * 3600; |
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86 | if ($neg) { |
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87 | $gmt = "-$gmt"; |
88 | } else { |
89 | $gmt = "+$gmt"; |
90 | } |
91 | |
92 | /** now find what the server is at **/ |
93 | $current = date('Z', time()); |
94 | if ($invert_time) { |
95 | $current = - $current; |
96 | } |
97 | $stamp = (int)$stamp - (int)$gmt + (int)$current; |
98 | |
99 | return $stamp; |
100 | } |
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101 | |
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102 | /** |
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103 | Switch system has been intentionaly chosen for the |
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104 | internationalization of month and day names. The reason |
105 | is to make sure that _("") strings will go into the |
106 | main po. |
107 | **/ |
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108 | |
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109 | function getDayName( $day_number ) { |
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110 | |
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111 | switch( $day_number ) { |
112 | case 0: |
113 | $ret = _("Sunday"); |
114 | break; |
115 | case 1: |
116 | $ret = _("Monday"); |
117 | break; |
118 | case 2: |
119 | $ret = _("Tuesday"); |
120 | break; |
121 | case 3: |
122 | $ret = _("Wednesday"); |
123 | break; |
124 | case 4: |
125 | $ret = _("Thursday"); |
126 | break; |
127 | case 5: |
128 | $ret = _("Friday"); |
129 | break; |
130 | case 6: |
131 | $ret = _("Saturday"); |
132 | break; |
133 | default: |
134 | $ret = ''; |
135 | } |
136 | return( $ret ); |
137 | } |
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138 | |
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139 | function getMonthName( $month_number ) { |
140 | switch( $month_number ) { |
141 | case '01': |
142 | $ret = _("January"); |
143 | break; |
144 | case '02': |
145 | $ret = _("February"); |
146 | break; |
147 | case '03': |
148 | $ret = _("March"); |
149 | break; |
150 | case '04': |
151 | $ret = _("April"); |
152 | break; |
153 | case '05': |
154 | $ret = _("May"); |
155 | break; |
156 | case '06': |
157 | $ret = _("June"); |
158 | break; |
159 | case '07': |
160 | $ret = _("July"); |
161 | break; |
162 | case '08': |
163 | $ret = _("August"); |
164 | break; |
165 | case '09': |
166 | $ret = _("September"); |
167 | break; |
168 | case '10': |
169 | $ret = _("October"); |
170 | break; |
171 | case '11': |
172 | $ret = _("November"); |
173 | break; |
174 | case '12': |
175 | $ret = _("December"); |
176 | break; |
177 | default: |
178 | $ret = ''; |
179 | } |
180 | return( $ret ); |
181 | } |
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182 | |
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183 | function date_intl( $date_format, $stamp ) { |
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184 | |
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185 | $ret = str_replace( 'D', '$1', $date_format ); |
186 | $ret = str_replace( 'F', '$2', $ret ); |
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187 | $ret = str_replace( 'l', '$4', $ret ); |
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188 | $ret = str_replace( 'M', '$5', $ret ); |
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189 | $ret = date( '$3'. $ret . '$3', $stamp ); // Workaround for a PHP 4.0.4 problem |
190 | $ret = str_replace( '$1', substr( getDayName( date( 'w', $stamp ) ), 0, 3 ), $ret ); |
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191 | $ret = str_replace( '$5', substr( getMonthName( date( 'm', $stamp ) ), 0, 3 ), $ret ); |
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192 | $ret = str_replace( '$2', getMonthName( date( 'm', $stamp ) ), $ret ); |
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193 | $ret = str_replace( '$4', getDayName( date( 'w', $stamp ) ), $ret ); |
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194 | $ret = str_replace( '$3', '', $ret ); |
195 | |
196 | return( $ret ); |
197 | } |
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198 | |
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199 | function getLongDateString( $stamp ) { |
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200 | |
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201 | global $hour_format; |
202 | |
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203 | if ($stamp == -1) { |
204 | return ''; |
205 | } |
206 | |
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207 | if ( $hour_format == SMPREF_TIME_12HR ) { |
208 | $date_format = _("D, F j, Y g:i a"); |
209 | } else { |
210 | $date_format = _("D, F j, Y G:i"); |
211 | } |
212 | |
213 | return( date_intl( $date_format, $stamp ) ); |
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214 | |
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215 | } |
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216 | |
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217 | function getDateString( $stamp ) { |
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218 | |
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219 | global $invert_time, $hour_format; |
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220 | |
221 | if ( $stamp == -1 ) { |
222 | return ''; |
223 | } |
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224 | |
225 | $now = time(); |
226 | |
227 | $dateZ = date('Z', $now ); |
228 | if ($invert_time) { |
229 | $dateZ = - $dateZ; |
230 | } |
231 | $midnight = $now - ($now % 86400) - $dateZ; |
232 | |
233 | if ($midnight < $stamp) { |
234 | /* Today */ |
235 | if ( $hour_format == SMPREF_TIME_12HR ) { |
236 | $date_format = _("g:i a"); |
237 | } else { |
238 | $date_format = _("G:i"); |
239 | } |
240 | } else if ($midnight - 518400 < $stamp) { |
241 | /* This week */ |
242 | if ( $hour_format == SMPREF_TIME_12HR ) { |
243 | $date_format = _("D, g:i a"); |
244 | } else { |
245 | $date_format = _("D, G:i"); |
246 | } |
247 | } else { |
248 | /* before this week */ |
249 | $date_format = _("M j, Y"); |
250 | } |
251 | |
252 | return( date_intl( $date_format, $stamp ) ); |
253 | } |
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254 | |
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255 | function getTimeStamp($dateParts) { |
256 | /** $dateParts[0] == <day of week> Mon, Tue, Wed |
257 | ** $dateParts[1] == <day of month> 23 |
258 | ** $dateParts[2] == <month> Jan, Feb, Mar |
259 | ** $dateParts[3] == <year> 1999 |
260 | ** $dateParts[4] == <time> 18:54:23 (HH:MM:SS) |
261 | ** $dateParts[5] == <from GMT> +0100 |
262 | ** $dateParts[6] == <zone> (EDT) |
263 | ** |
264 | ** NOTE: In RFC 822, it states that <day of week> is optional. |
265 | ** In that case, dateParts[0] would be the <day of month> |
266 | ** and everything would be bumped up one. |
267 | **/ |
268 | |
269 | /* |
270 | * Simply check to see if the first element in the dateParts |
271 | * array is an integer or not. |
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272 | * Since the day of week is optional, this check is needed. |
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273 | */ |
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274 | |
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275 | /* validate zone before we uses strtotime */ |
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276 | if (isset($dateParts[6]) && $dateParts[6] && $dateParts[6]{0} != '(') { |
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277 | $dateParts[6] = '('.$dateParts[6].')'; |
278 | } |
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279 | $string = implode (' ', $dateParts); |
280 | |
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281 | if (! isset($dateParts[4])) { |
282 | $dateParts[4] = ''; |
283 | } |
284 | if (! isset($dateParts[5])) { |
285 | $dateParts[5] = ''; |
286 | } |
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287 | |
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288 | if (intval(trim($dateParts[0])) > 0) { |
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289 | return getGMTSeconds(strtotime($string), $dateParts[4]); |
290 | } |
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291 | return getGMTSeconds(strtotime($string), $dateParts[5]); |
0e4ae91a |
292 | } |
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293 | |
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294 | /* I use this function for profiling. Should never be called in |
295 | actual versions of squirrelmail released to public. */ |
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296 | /* |
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297 | function getmicrotime() { |
298 | $mtime = microtime(); |
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299 | $mtime = explode(' ',$mtime); |
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300 | $mtime = $mtime[1] + $mtime[0]; |
301 | return ($mtime); |
9774bdef |
302 | } |
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303 | */ |
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304 | ?> |