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+<td><h1>Code Igniter User Guide Version 1.4.0</h1></td>
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+
+<h1>Date Helper</h1>
+
+<p>The Date Helper file contains functions that help you work with dates.</p>
+
+
+<h2>Loading this Helper</h2>
+
+<p>This helper is loaded using the following code:</p>
+<code>$this->load->helper('date');</code>
+
+
+<p>The following functions are available:</p>
+
+<h2>now()</h2>
+
+<p>Returns the current time as a Unix timestamp, referenced either to your server's local time or GMT, based on the "time reference"
+setting in your config file.  If you do not intend to set your master time reference to GMT (which you'll typically do if you
+run a site that lets each user set their own timezone settings) there is no benefit to using this function over PHP's time() function.
+</p>
+
+
+
+
+<h2>mdate()</h2>
+
+<p>This function is identical to PHPs <a href="http://www.php.net/date">date()</a> function, except that it lets you 
+use MySQL style date codes, where each code letter is preceded with a percent sign:  %Y %m %d etc.</p>
+
+<p>The benefit of doing dates this way is that you don't have to worry about escaping any characters that
+are not date codes, as you would normally have to do with the date() function.  Example:</p>
+
+<code>$datestring = "Year: %Y Month: %m Day: %d - %h:%i %a";<br />
+$time = time();<br />
+<br />
+echo mdate($datestring, $time);</code>
+
+<p>If a timestamp is not included in the second parameter the current time will be used.</p>
+
+
+<h2>local_to_gmt()</h2>
+
+<p>Takes a Unix timestamp as input and returns it as GMT.  Example:</p>
+
+<code>$now = time();<br />
+<br />
+$gmt = local_to_gmt($now);</code>
+
+
+<h2>gmt_to_local()</h2>
+
+<p>Takes a Unix timestamp (referenced to GMT) as input, and converts it to a localized timestamp based on the 
+timezone and Daylight Saving time submitted.  Example:</p>
+
+<code>
+$timestamp = '1140153693';<br />
+$timezone  = 'UM8';<br />
+$daylight_saving = TRUE;<br />
+<br />
+echo gmt_to_local($timestamp, $timezone, daylight_saving);</code>
+
+<p><strong>Note:</strong> For a list of timezones see the reference at the bottom of this page.</p>
+
+<h2>mysql_to_unix()</h2>
+
+<p>Takes a MySQL Timestamp as input and returns it as Unix. Example:</p>
+
+<code>$mysql = '20061124092345';<br />
+<br />
+$unix = mysql_to_unix($mysql);</code>
+
+
+<h2>unix_to_human()</h2>
+
+<p>Takes a Unix timestamp as input and returns it in a human readable format with this prototype:</p>
+
+<code>YYYY-MM-DD HH:MM:SS AM/PM</code>
+
+<p>This can be useful if you need to display a date in a form field for submission.</p>
+
+<p>The time can be formatted with or without seconds, and it can be set to European or US format.  If only 
+the timestamp is submitted it will return the time without seconds formatted for the U.S. Examples:
+
+<code>$now = time();<br />
+<br />
+echo unix_to_human($now); // U.S. time, no seconds<br />
+<br />
+echo unix_to_human($now, TRUE, 'us'); // U.S. time with seconds<br />
+<br />
+echo unix_to_human($now, TRUE, 'eu'); // Euro time with seconds</code>
+
+
+<h2>human_to_unix()</h2>
+
+<p>The opposite of the above function.  Takes a "human" time as input and returns it as Unix.  This function is 
+useful if you accept "human" formatted dates submitted via a form.  Returns FALSE (boolean) if 
+the date string passed to it is not formatted as indicated above.  Example:</p>
+
+<code>$now = time();<br />
+<br />
+$human = unix_to_human($now);<br />
+<br />
+$unix = human_to_unix($human);</code>
+
+
+
+
+
+<h2>timespan()</h2>
+
+<p>Formats a unix timestamp so that is appears similar to this:</p>
+
+<code>1 Year, 10 Months, 2 Weeks, 5 Days, 10 Hours, 16 Minutes</code>
+
+<p>The first parameter must contain a Unix timestamp.  The second parameter must contain a
+timestamp that is greater that the first timesamp.  If the second parameter empty, the current time will be used.  The most common purpose
+for this function is to show how much time has elapsed from some point in time in the past to now.  Example:</p>
+
+<code>$post_date = '1079621429';<br />
+$now = time();<br />
+<br />
+echo timespan($post_date, $now);</code>
+
+<p class="important"><strong>Note:</strong> The text generated by this function is found in the following language file: language/&lt;your_lang&gt;/date_lang.php</p>
+
+
+<h2>days_in_month()</h2>
+
+<p>Returns the number of days in a given month/year. Takes leap years into account.  Example:</p>
+<code>echo days_in_month(06, 2005);</code>
+
+<p>If the second parameter is empty, the current year will be used.</p>
+
+
+
+<h2>timezone_menu()</h2>
+
+<p>Generates a pull-down menu of timezones, like this one:</p>
+
+<form>
+<select name="timezones">
+<option value='UM12'>(UTC - 12:00) Enitwetok, Kwajalien</option>
+<option value='UM11'>(UTC - 11:00) Nome, Midway Island, Samoa</option>
+<option value='UM10'>(UTC - 10:00) Hawaii</option>
+<option value='UM9'>(UTC - 9:00) Alaska</option>
+<option value='UM8'>(UTC - 8:00) Pacific Time</option>
+<option value='UM7'>(UTC - 7:00) Mountain Time</option>
+<option value='UM6'>(UTC - 6:00) Central Time, Mexico City</option>
+<option value='UM5'>(UTC - 5:00) Eastern Time, Bogota, Lima, Quito</option>
+<option value='UM4'>(UTC - 4:00) Atlantic Time, Caracas, La Paz</option>
+<option value='UM25'>(UTC - 3:30) Newfoundland</option>
+<option value='UM3'>(UTC - 3:00) Brazil, Buenos Aires, Georgetown, Falkland Is.</option>
+<option value='UM2'>(UTC - 2:00) Mid-Atlantic, Ascention Is., St Helena</option>
+<option value='UM1'>(UTC - 1:00) Azores, Cape Verde Islands</option>
+<option value='UTC' selected='selected'>(UTC) Casablanca, Dublin, Edinburgh, London, Lisbon, Monrovia</option>
+<option value='UP1'>(UTC + 1:00) Berlin, Brussels, Copenhagen, Madrid, Paris, Rome</option>
+<option value='UP2'>(UTC + 2:00) Kaliningrad, South Africa, Warsaw</option>
+<option value='UP3'>(UTC + 3:00) Baghdad, Riyadh, Moscow, Nairobi</option>
+<option value='UP25'>(UTC + 3:30) Tehran</option>
+<option value='UP4'>(UTC + 4:00) Adu Dhabi, Baku, Muscat, Tbilisi</option>
+<option value='UP35'>(UTC + 4:30) Kabul</option>
+<option value='UP5'>(UTC + 5:00) Islamabad, Karachi, Tashkent</option>
+<option value='UP45'>(UTC + 5:30) Bombay, Calcutta, Madras, New Delhi</option>
+<option value='UP6'>(UTC + 6:00) Almaty, Colomba, Dhakra</option>
+<option value='UP7'>(UTC + 7:00) Bangkok, Hanoi, Jakarta</option>
+<option value='UP8'>(UTC + 8:00) Beijing, Hong Kong, Perth, Singapore, Taipei</option>
+<option value='UP9'>(UTC + 9:00) Osaka, Sapporo, Seoul, Tokyo, Yakutsk</option>
+<option value='UP85'>(UTC + 9:30) Adelaide, Darwin</option>
+<option value='UP10'>(UTC + 10:00) Melbourne, Papua New Guinea, Sydney, Vladivostok</option>
+<option value='UP11'>(UTC + 11:00) Magadan, New Caledonia, Solomon Islands</option>
+<option value='UP12'>(UTC + 12:00) Auckland, Wellington, Fiji, Marshall Island</option>
+</select>
+</form>
+
+<p>This menu is useful if you run a membership site in which your users are allowed to set their local timezone value.</p>
+
+<p>The first paramater lets you set the "selected" state of the menu.  For example, to set Pacific time as the default you will do this:</p>
+
+<code>echo timezone_menu('UM8');</code>
+
+<p>Please see the timezone reference below to see the values of this menu.</p>
+
+<p>The second parameter lets you set a CSS class name for the menu.</p>
+
+<p class="important"><strong>Note:</strong> The text contained in the menu is found in the following language file: language/&lt;your_lang&gt;/date_lang.php</p>
+
+
+
+<h2>Timezone Reference</h2>
+
+<p>The following table indicates each timezone and its location.</p>
+
+<table cellpadding="0" cellspacing="1" border="0" style="width:100%" class="tableborder">
+<tr>
+<th>Time Zone</th>
+<th>Location</th>
+</tr><tr>
+
+<td class="td">UM12</td><td class="td">(UTC - 12:00) Enitwetok, Kwajalien</td>
+</tr><tr>
+<td class="td">UM11</td><td class="td">(UTC - 11:00) Nome, Midway Island, Samoa</td>
+</tr><tr>
+<td class="td">UM10</td><td class="td">(UTC - 10:00) Hawaii</td>
+</tr><tr>
+<td class="td">UM9</td><td class="td">(UTC - 9:00) Alaska</td>
+</tr><tr>
+<td class="td">UM8</td><td class="td">(UTC - 8:00) Pacific Time</td>
+</tr><tr>
+<td class="td">UM7</td><td class="td">(UTC - 7:00) Mountain Time</td>
+</tr><tr>
+<td class="td">UM6</td><td class="td">(UTC - 6:00) Central Time, Mexico City</td>
+</tr><tr>
+<td class="td">UM5</td><td class="td">(UTC - 5:00) Eastern Time, Bogota, Lima, Quito</td>
+</tr><tr>
+<td class="td">UM4</td><td class="td">(UTC - 4:00) Atlantic Time, Caracas, La Paz</td>
+</tr><tr>
+<td class="td">UM25</td><td class="td">(UTC - 3:30) Newfoundland</td>
+</tr><tr>
+<td class="td">UM3</td><td class="td">(UTC - 3:00) Brazil, Buenos Aires, Georgetown, Falkland Is.</td>
+</tr><tr>
+<td class="td">UM2</td><td class="td">(UTC - 2:00) Mid-Atlantic, Ascention Is., St Helena</td>
+</tr><tr>
+<td class="td">UM1</td><td class="td">(UTC - 1:00) Azores, Cape Verde Islands</td>
+</tr><tr>
+<td class="td">(UTC</td><td class="td">(UTC) Casablanca, Dublin, Edinburgh, London, Lisbon, Monrovia</td>
+</tr><tr>
+<td class="td">UP1</td><td class="td">(UTC + 1:00) Berlin, Brussels, Copenhagen, Madrid, Paris, Rome</td>
+</tr><tr>
+<td class="td">UP2</td><td class="td">(UTC + 2:00) Kaliningrad, South Africa, Warsaw</td>
+</tr><tr>
+<td class="td">UP3</td><td class="td">(UTC + 3:00) Baghdad, Riyadh, Moscow, Nairobi</td>
+</tr><tr>
+<td class="td">UP25</td><td class="td">(UTC + 3:30) Tehran</td>
+</tr><tr>
+<td class="td">UP4</td><td class="td">(UTC + 4:00) Adu Dhabi, Baku, Muscat, Tbilisi</td>
+</tr><tr>
+<td class="td">UP35</td><td class="td">(UTC + 4:30) Kabul</td>
+</tr><tr>
+<td class="td">UP5</td><td class="td">(UTC + 5:00) Islamabad, Karachi, Tashkent</td>
+</tr><tr>
+<td class="td">UP45</td><td class="td">(UTC + 5:30) Bombay, Calcutta, Madras, New Delhi</td>
+</tr><tr>
+<td class="td">UP6</td><td class="td">(UTC + 6:00) Almaty, Colomba, Dhakra</td>
+</tr><tr>
+<td class="td">UP7</td><td class="td">(UTC + 7:00) Bangkok, Hanoi, Jakarta</td>
+</tr><tr>
+<td class="td">UP8</td><td class="td">(UTC + 8:00) Beijing, Hong Kong, Perth, Singapore, Taipei</td>
+</tr><tr>
+<td class="td">UP9</td><td class="td">(UTC + 9:00) Osaka, Sapporo, Seoul, Tokyo, Yakutsk</td>
+</tr><tr>
+<td class="td">UP85</td><td class="td">(UTC + 9:30) Adelaide, Darwin</td>
+</tr><tr>
+<td class="td">UP10</td><td class="td">(UTC + 10:00) Melbourne, Papua New Guinea, Sydney, Vladivostok</td>
+</tr><tr>
+<td class="td">UP11</td><td class="td">(UTC + 11:00) Magadan, New Caledonia, Solomon Islands</td>
+</tr><tr>
+<td class="td">UP12</td><td class="td">(UTC + 12:00) Auckland, Wellington, Fiji, Marshall Island</td>
+</tr>
+</table>
+
+
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