Sailesh's Journal
PHP to Leadership: Since 2008

If you want to convert any date time to GMT/UTC for given timezone (observing DST/not). /**      * coverts the given date time to GMT/UTC based on timezone provided      * @param string $date      * @param string $timezone      * @return string      */     function getGMT($date, $timezone){         date_default_timezone_set("UTC");         $daylight_savings_offset_in_seconds = timezone_offset_get( timezone_open( $timezone ), new DateTime() );         return $new_date = date('Y-m-d H:i:s', strtotime('-'.$daylight_savings_offset_in_seconds.' seconds', strtotime($date)));     } $date = "2014-11-30 23:50:00"; //yyyy-mm-dd //$date = "11/30/2014 23:50:00"; //mm/dd/yyyy //$date = "30-11-2014 23:50:00"; //dd-mm-yyyy $timezone = "Asia/Kolkata"; //$timezon...

If you are asked to find the random coordinates (latitude & longitude) considering that your latitude & longitude as the center and with in the given proximity (radius), then this service will help to get one such coordinate. An example, you are at X location (17.414472, 78.449024) and radius 1 mile.  /**      * picks the random latitude & longitude with respect to given within the provided radius      *      * @param array $centre    (lat, lng)      * @param number $radius                 * @return array:      */     function getCoordinates($centre, $radius)     {         $radius_earth = 3959; // miles                   ...