public function date_rfc2822($date)
	{
		static $pcre;
		if (!$pcre)
		{
			$wsp = '[\x09\x20]';
			$fws = '(?:' . $wsp . '+|' . $wsp . '*(?:\x0D\x0A' . $wsp . '+)+)';
			$optional_fws = $fws . '?';
			$day_name = $this->day_pcre;
			$month = $this->month_pcre;
			$day = '([0-9]{1,2})';
			$hour = $minute = $second = '([0-9]{2})';
			$year = '([0-9]{2,4})';
			$num_zone = '([+\-])([0-9]{2})([0-9]{2})';
			$character_zone = '([A-Z]{1,5})';
			$zone = '(?:' . $num_zone . '|' . $character_zone . ')';
			$pcre = '/(?:' . $optional_fws . $day_name . $optional_fws . ',)?' . $optional_fws . $day . $fws . $month . $fws . $year . $fws . $hour . $optional_fws . ':' . $optional_fws . $minute . '(?:' . $optional_fws . ':' . $optional_fws . $second . ')?' . $fws . $zone . '/i';
		}
		if (preg_match($pcre, $this->remove_rfc2822_comments($date), $match))
		{
			/*
			Capturing subpatterns:
			1: Day name
			2: Day
			3: Month
			4: Year
			5: Hour
			6: Minute
			7: Second
			8: Timezone ±
			9: Timezone hours
			10: Timezone minutes
			11: Alphabetic timezone
			*/

			// Find the month number
			$month = $this->month[strtolower($match[3])];

			// Numeric timezone
			if ($match[8] !== '')
			{
				$timezone = $match[9] * 3600;
				$timezone += $match[10] * 60;
				if ($match[8] === '-')
				{
					$timezone = 0 - $timezone;
				}
			}
			// Character timezone
			elseif (isset($this->timezone[strtoupper($match[11])]))
			{
				$timezone = $this->timezone[strtoupper($match[11])];
			}
			// Assume everything else to be -0000
			else
			{
				$timezone = 0;
			}

			// Deal with 2/3 digit years
			if ($match[4] < 50)
			{
				$match[4] += 2000;
			}
			elseif ($match[4] < 1000)
			{
				$match[4] += 1900;
			}

			// Second is optional, if it is empty set it to zero
			if ($match[7] !== '')
			{
				$second = $match[7];
			}
			else
			{
				$second = 0;
			}

			return gmmktime($match[5], $match[6], $second, $month, $match[2], $match[4]) - $timezone;
		}
		else
		{
			return false;
		}
	}
public function date_rfc2822($date)
	{
		static $pcre;
		if (!$pcre)
		{
			$wsp = '[\x09\x20]';
			$fws = '(?:' . $wsp . '+|' . $wsp . '*(?:\x0D\x0A' . $wsp . '+)+)';
			$optional_fws = $fws . '?';
			$day_name = $this->day_pcre;
			$month = $this->month_pcre;
			$day = '([0-9]{1,2})';
			$hour = $minute = $second = '([0-9]{2})';
			$year = '([0-9]{2,4})';
			$num_zone = '([+\-])([0-9]{2})([0-9]{2})';
			$character_zone = '([A-Z]{1,5})';
			$zone = '(?:' . $num_zone . '|' . $character_zone . ')';
			$pcre = '/(?:' . $optional_fws . $day_name . $optional_fws . ',)?' . $optional_fws . $day . $fws . $month . $fws . $year . $fws . $hour . $optional_fws . ':' . $optional_fws . $minute . '(?:' . $optional_fws . ':' . $optional_fws . $second . ')?' . $fws . $zone . '/i';
		}
		if (preg_match($pcre, $this->remove_rfc2822_comments($date), $match))
		{
			/*
			Capturing subpatterns:
			1: Day name
			2: Day
			3: Month
			4: Year
			5: Hour
			6: Minute
			7: Second
			8: Timezone ±
			9: Timezone hours
			10: Timezone minutes
			11: Alphabetic timezone
			*/

			// Find the month number
			$month = $this->month[strtolower($match[3])];

			// Numeric timezone
			if ($match[8] !== '')
			{
				$timezone = $match[9] * 3600;
				$timezone += $match[10] * 60;
				if ($match[8] === '-')
				{
					$timezone = 0 - $timezone;
				}
			}
			// Character timezone
			elseif (isset($this->timezone[strtoupper($match[11])]))
			{
				$timezone = $this->timezone[strtoupper($match[11])];
			}
			// Assume everything else to be -0000
			else
			{
				$timezone = 0;
			}

			// Deal with 2/3 digit years
			if ($match[4] < 50)
			{
				$match[4] += 2000;
			}
			elseif ($match[4] < 1000)
			{
				$match[4] += 1900;
			}

			// Second is optional, if it is empty set it to zero
			if ($match[7] !== '')
			{
				$second = $match[7];
			}
			else
			{
				$second = 0;
			}

			return gmmktime($match[5], $match[6], $second, $month, $match[2], $match[4]) - $timezone;
		}
		else
		{
			return false;
		}
	}
public function date_rfc2822 ( $ date ) { static $ pcre ; if ( ! $ pcre ) { $ wsp = '[\x09\x20]' ; $ fws = '(?:' . $ wsp . '+|' . $ wsp . '*(?:\x0D\x0A' . $ wsp . '+)+)' ; $ optional_fws = $ fws . '?' ; $ day_name = $ this -> day_pcre ; $ month = $ this -> month_pcre ; $ day = '([0-9]{1,2})' ; $ hour = $ minute = $ second = '([0-9]{2})' ; $ year = '([0-9]{2,4})' ; $ num_zone = '([+\-])([0-9]{2})([0-9]{2})' ; $ character_zone = '([A-Z]{1,5})' ; $ zone = '(?:' . $ num_zone . '|' . $ character_zone . ')' ; $ pcre = '/(?:' . $ optional_fws . $ day_name . $ optional_fws . ',)?' . $ optional_fws . $ day . $ fws . $ month . $ fws . $ year . $ fws . $ hour . $ optional_fws . ':' . $ optional_fws . $ minute . '(?:' . $ optional_fws . ':' . $ optional_fws . $ second . ')?' . $ fws . $ zone . '/i' ; } if ( preg_match ( $ pcre , $ this -> remove_rfc2822_comments ( $ date ) , $ match ) ) { /*
			Capturing subpatterns:
			1: Day name
			2: Day
			3: Month
			4: Year
			5: Hour
			6: Minute
			7: Second
			8: Timezone ±
			9: Timezone hours
			10: Timezone minutes
			11: Alphabetic timezone
			*/ // Find the month number $ month = $ this -> month [ strtolower ( $ match [ 3 ] ) ] ; // Numeric timezone if ( $ match [ 8 ] !== '' ) { $ timezone = $ match [ 9 ] * 3600 ; $ timezone += $ match [ 10 ] * 60 ; if ( $ match [ 8 ] === '-' ) { $ timezone = 0 - $ timezone ; } } // Character timezone elseif ( isset ( $ this -> timezone [ strtoupper ( $ match [ 11 ] ) ] ) ) { $ timezone = $ this -> timezone [ strtoupper ( $ match [ 11 ] ) ] ; } // Assume everything else to be -0000 else { $ timezone = 0 ; } // Deal with 2/3 digit years if ( $ match [ 4 ] < 50 ) { $ match [ 4 ] += 2000 ; } elseif ( $ match [ 4 ] < 1000 ) { $ match [ 4 ] += 1900 ; } // Second is optional, if it is empty set it to zero if ( $ match [ 7 ] !== '' ) { $ second = $ match [ 7 ] ; } else { $ second = 0 ; } return gmmktime ( $ match [ 5 ] , $ match [ 6 ] , $ second , $ month , $ match [ 2 ] , $ match [ 4 ] ) - $ timezone ; } else { return false ; } }
Parse RFC2822's date format

@access protected
@return int Timestamp
Parse RFC2822 s date format