XForms/DateParser.php5

<?php
// This class allows you to build a date using the sql standard YYYY-MM-DD in order
// to fetch the year, month, and day individually or fetch the corresponding timestamp.

class DateParser
{
    protected $year = "";
    protected $month = "";
    protected $day = "";
    protected $hour = 0;
    protected $minute = 0;
    protected $timestamp = "";
    protected $mysqlFormatDate = "";
    protected $mysqlFormatTime = "";

    function __construct($date, $time="") {
        $this->mysqlFormatDate=$date;
        $this->mysqlFormatTime=$time;
        $this->year = strtok($date, "-");
        $this->month = strtok("-");
        $this->day = strtok("-");
        if($time != '') {
            $this->hour = strtok($time, ":");
            $this->minute = strtok(":");
        }
        $this->timestamp = mktime($this->hour,$this->minute,0,$this->month,$this->day,$this->year);
    }

    public static function quickFormatDate($date, $formatString, $addDays='') {
        if ($date == "0000-00-00" || $date == "")
            return "";
        $year = strtok($date, "-");
        $month = strtok("-");
        $day = strtok(' ');
        if($addDays != '') {
            $day += $addDays;
        }
        $timestamp = mktime(0,0,0,$month,$day,$year);

        return date($formatString, $timestamp);
    }

    public static function currentDateMysql() {
        date('Y-m-d H:i:s');
    }


    public static function quickFormatTime($time, $forCalender=false) {
        $hour = strtok($time, ":");
        $minute = strtok(":");
        if ($forCalender) {
            return ($hour.$minute.'00');
        } else {
            $meridiem = ($hour > 11)?'pm':'am';
            $hour = ($hour == 0)?24:$hour;
            $hour = ($hour > 12)?$hour-12:$hour;
            return (ltrim($hour, '0').':'.$minute.' '.$meridiem);
        }
    }

    public static function formatTimeAgo($timestamp) {
        $submissionTime = (int)((time() - strtotime($timestamp))/(60*60*24));
        $timeAgo = "";

        if ($submissionTime == 1) 
            $timeAgo = "Yesterday";
        else if ($submissionTime == 0)
            $timeAgo = "Today";
        else if ($submissionTime > 31) {
            $months = (int)($submissionTime/31);
            
            if ($months > 11) {
                return self::quickFormatDate($timestamp, "F jS, Y");
            }
            $days = $submissionTime%31;
            if ($months == 1) $monthFormat = "month";
            else $monthFormat = "months";
            if ($days == 1) $dayFormat = "day";
            else if ($days == 0) $dayFormat = "";
            else $dayFormat = "days";

            $timeAgo = $months . " " . $monthFormat . " " . $days . " " . $dayFormat . " ago";
        } else
            $timeAgo = $submissionTime . " days ago";

        return ($timeAgo);
    }


    public function formatDate($formatString) {
        return date($formatString, $this->timestamp);
    }

    public function formatTime($forCalendar=false, $time='') {
        if($forCalendar) {
            return ($this->hour.$this->minute.'00');
        } else {
            $meridiem = ($this->hour > 11)?'pm':'am';
            $hour12 = ($this->hour == 0)?24:$this->hour;
            $hour12 = ($hour12 > 12)?$hour12-12:$hour12;
            return (ltrim($hour12, '0').':'.$this->minute.' '.$meridiem);
        }
    }

    public function getYear() {
        return $this->year;
    }

    public function getMonth() {
        return $this->month;
    }

    public function getDay() {
        return $this->day;
    }

    public function getHour() {
        return $this->hour;
    }

    public function getMinute() {
        return $this->minute;
    }

    public function getTimestamp() {
        return $this->timestamp;
    }

    public function getMysqlFormatDate() {
        return $this->mysqlFormatDate;
    }

    public function getMysqlFormatTime() {
        return $this->mysqlFormatTime;
    }
}

?>

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