public function setTimestamp( $ts = false ) {
		$m = [];
		$da = [];
		$strtime = '';

		// We want to catch 0, '', null... but not date strings starting with a letter.
		if ( !$ts || $ts === "\0\0\0\0\0\0\0\0\0\0\0\0\0\0" ) {
			$uts = self::time();
			$strtime = "@$uts";
		} elseif ( preg_match( '/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)$/D', $ts, $da ) ) {
			# TS_DB
		} elseif ( preg_match( '/^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/D', $ts, $da ) ) {
			# TS_EXIF
		} elseif ( preg_match( '/^(\d{4})(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)$/D', $ts, $da ) ) {
			# TS_MW
		} elseif ( preg_match( '/^(-?\d{1,13})$/D', $ts, $m ) ) {
			# TS_UNIX
			$strtime = "@{$m[1]}"; // http://php.net/manual/en/datetime.formats.compound.php
		} elseif ( preg_match( '/^(-?\d{1,13})(\.\d+)$/D', $ts, $m ) ) {
			# TS_UNIX_MICRO
			// Not supported with @, so we need a hack
			$strtime = 'unixmicro';
		} elseif ( preg_match( '/^\d{2}-\d{2}-\d{4} \d{2}:\d{2}:\d{2}.\d{6}$/', $ts ) ) {
			# TS_ORACLE // session altered to DD-MM-YYYY HH24:MI:SS.FF6
			$strtime = preg_replace( '/(\d\d)\.(\d\d)\.(\d\d)(\.(\d+))?/', "$1:$2:$3",
				str_replace( '+00:00', 'UTC', $ts ) );
		} elseif ( preg_match(
			'/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(?:\.*\d*)?Z?$/',
			$ts,
			$da
		) ) {
			# TS_ISO_8601
		} elseif ( preg_match(
			'/^(\d{4})(\d{2})(\d{2})T(\d{2})(\d{2})(\d{2})(?:\.*\d*)?Z?$/',
			$ts,
			$da
		) ) {
			# TS_ISO_8601_BASIC
		} elseif ( preg_match(
			'/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)\.*\d*[\+\- ](\d\d)$/',
			$ts,
			$da
		) ) {
			# TS_POSTGRES
		} elseif ( preg_match(
			'/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)\.*\d* GMT$/',
			$ts,
			$da
		) ) {
			# TS_POSTGRES
		} elseif ( preg_match(
			# Day of week
			'/^[ \t\r\n]*([A-Z][a-z]{2},[ \t\r\n]*)?' .
			# dd Mon yyyy
			'\d\d?[ \t\r\n]*[A-Z][a-z]{2}[ \t\r\n]*\d{2}(?:\d{2})?' .
			# hh:mm:ss
			'[ \t\r\n]*\d\d[ \t\r\n]*:[ \t\r\n]*\d\d[ \t\r\n]*:[ \t\r\n]*\d\d/S',
			$ts
		) ) {
			# TS_RFC2822, accepting a trailing comment.
			# See http://www.squid-cache.org/mail-archive/squid-users/200307/0122.html / r77171
			# The regex is a superset of rfc2822 for readability
			$strtime = strtok( $ts, ';' );
		} elseif ( preg_match( '/^[A-Z][a-z]{5,8}, \d\d-[A-Z][a-z]{2}-\d{2} \d\d:\d\d:\d\d/', $ts ) ) {
			# TS_RFC850
			$strtime = $ts;
		} elseif ( preg_match( '/^[A-Z][a-z]{2} [A-Z][a-z]{2} +\d{1,2} \d\d:\d\d:\d\d \d{4}/', $ts ) ) {
			# asctime
			$strtime = $ts;
		} else {
			throw new TimestampException( __METHOD__ . ": Invalid timestamp - $ts" );
		}

		if ( !$strtime ) {
			$da = array_map( 'intval', $da );
			$da[0] = "%04d-%02d-%02dT%02d:%02d:%02d.00+00:00";
			$strtime = call_user_func_array( "sprintf", $da );
		}

		try {
			if ( $strtime === 'unixmicro' ) {
				$final = DateTime::createFromFormat( 'U.u', $ts, new DateTimeZone( 'GMT' ) );
			} else {
				$final = new DateTime( $strtime, new DateTimeZone( 'GMT' ) );
			}
		} catch ( Exception $e ) {
			throw new TimestampException( __METHOD__ . ': Invalid timestamp format.', $e->getCode(), $e );
		}

		if ( $final === false ) {
			throw new TimestampException( __METHOD__ . ': Invalid timestamp format.' );
		}

		$this->timestamp = $final;
	}
public function setTimestamp( $ts = false ) {
		$m = [];
		$da = [];
		$strtime = '';

		// We want to catch 0, '', null... but not date strings starting with a letter.
		if ( !$ts || $ts === "\0\0\0\0\0\0\0\0\0\0\0\0\0\0" ) {
			$uts = self::time();
			$strtime = "@$uts";
		} elseif ( preg_match( '/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)$/D', $ts, $da ) ) {
			# TS_DB
		} elseif ( preg_match( '/^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/D', $ts, $da ) ) {
			# TS_EXIF
		} elseif ( preg_match( '/^(\d{4})(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)$/D', $ts, $da ) ) {
			# TS_MW
		} elseif ( preg_match( '/^(-?\d{1,13})$/D', $ts, $m ) ) {
			# TS_UNIX
			$strtime = "@{$m[1]}"; // http://php.net/manual/en/datetime.formats.compound.php
		} elseif ( preg_match( '/^(-?\d{1,13})(\.\d+)$/D', $ts, $m ) ) {
			# TS_UNIX_MICRO
			// Not supported with @, so we need a hack
			$strtime = 'unixmicro';
		} elseif ( preg_match( '/^\d{2}-\d{2}-\d{4} \d{2}:\d{2}:\d{2}.\d{6}$/', $ts ) ) {
			# TS_ORACLE // session altered to DD-MM-YYYY HH24:MI:SS.FF6
			$strtime = preg_replace( '/(\d\d)\.(\d\d)\.(\d\d)(\.(\d+))?/', "$1:$2:$3",
				str_replace( '+00:00', 'UTC', $ts ) );
		} elseif ( preg_match(
			'/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(?:\.*\d*)?Z?$/',
			$ts,
			$da
		) ) {
			# TS_ISO_8601
		} elseif ( preg_match(
			'/^(\d{4})(\d{2})(\d{2})T(\d{2})(\d{2})(\d{2})(?:\.*\d*)?Z?$/',
			$ts,
			$da
		) ) {
			# TS_ISO_8601_BASIC
		} elseif ( preg_match(
			'/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)\.*\d*[\+\- ](\d\d)$/',
			$ts,
			$da
		) ) {
			# TS_POSTGRES
		} elseif ( preg_match(
			'/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)\.*\d* GMT$/',
			$ts,
			$da
		) ) {
			# TS_POSTGRES
		} elseif ( preg_match(
			# Day of week
			'/^[ \t\r\n]*([A-Z][a-z]{2},[ \t\r\n]*)?' .
			# dd Mon yyyy
			'\d\d?[ \t\r\n]*[A-Z][a-z]{2}[ \t\r\n]*\d{2}(?:\d{2})?' .
			# hh:mm:ss
			'[ \t\r\n]*\d\d[ \t\r\n]*:[ \t\r\n]*\d\d[ \t\r\n]*:[ \t\r\n]*\d\d/S',
			$ts
		) ) {
			# TS_RFC2822, accepting a trailing comment.
			# See http://www.squid-cache.org/mail-archive/squid-users/200307/0122.html / r77171
			# The regex is a superset of rfc2822 for readability
			$strtime = strtok( $ts, ';' );
		} elseif ( preg_match( '/^[A-Z][a-z]{5,8}, \d\d-[A-Z][a-z]{2}-\d{2} \d\d:\d\d:\d\d/', $ts ) ) {
			# TS_RFC850
			$strtime = $ts;
		} elseif ( preg_match( '/^[A-Z][a-z]{2} [A-Z][a-z]{2} +\d{1,2} \d\d:\d\d:\d\d \d{4}/', $ts ) ) {
			# asctime
			$strtime = $ts;
		} else {
			throw new TimestampException( __METHOD__ . ": Invalid timestamp - $ts" );
		}

		if ( !$strtime ) {
			$da = array_map( 'intval', $da );
			$da[0] = "%04d-%02d-%02dT%02d:%02d:%02d.00+00:00";
			$strtime = call_user_func_array( "sprintf", $da );
		}

		try {
			if ( $strtime === 'unixmicro' ) {
				$final = DateTime::createFromFormat( 'U.u', $ts, new DateTimeZone( 'GMT' ) );
			} else {
				$final = new DateTime( $strtime, new DateTimeZone( 'GMT' ) );
			}
		} catch ( Exception $e ) {
			throw new TimestampException( __METHOD__ . ': Invalid timestamp format.', $e->getCode(), $e );
		}

		if ( $final === false ) {
			throw new TimestampException( __METHOD__ . ': Invalid timestamp format.' );
		}

		$this->timestamp = $final;
	}
public function setTimestamp ( $ ts = false ) { $ m = [ ] ; $ da = [ ] ; $ strtime = '' ; // We want to catch 0, '', null... but not date strings starting with a letter. if ( ! $ ts || $ ts === "\0\0\0\0\0\0\0\0\0\0\0\0\0\0" ) { $ uts = self :: time ( ) ; $ strtime = "@$uts" ; } elseif ( preg_match ( '/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)$/D' , $ ts , $ da ) ) { # TS_DB } elseif ( preg_match ( '/^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/D' , $ ts , $ da ) ) { # TS_EXIF } elseif ( preg_match ( '/^(\d{4})(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)$/D' , $ ts , $ da ) ) { # TS_MW } elseif ( preg_match ( '/^(-?\d{1,13})$/D' , $ ts , $ m ) ) { # TS_UNIX $ strtime = "@{$m[1]}" ; // http://php.net/manual/en/datetime.formats.compound.php } elseif ( preg_match ( '/^(-?\d{1,13})(\.\d+)$/D' , $ ts , $ m ) ) { # TS_UNIX_MICRO // Not supported with @, so we need a hack $ strtime = 'unixmicro' ; } elseif ( preg_match ( '/^\d{2}-\d{2}-\d{4} \d{2}:\d{2}:\d{2}.\d{6}$/' , $ ts ) ) { # TS_ORACLE // session altered to DD-MM-YYYY HH24:MI:SS.FF6 $ strtime = preg_replace ( '/(\d\d)\.(\d\d)\.(\d\d)(\.(\d+))?/' , "$1:$2:$3" , str_replace ( '+00:00' , 'UTC' , $ ts ) ) ; } elseif ( preg_match ( '/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(?:\.*\d*)?Z?$/' , $ ts , $ da ) ) { # TS_ISO_8601 } elseif ( preg_match ( '/^(\d{4})(\d{2})(\d{2})T(\d{2})(\d{2})(\d{2})(?:\.*\d*)?Z?$/' , $ ts , $ da ) ) { # TS_ISO_8601_BASIC } elseif ( preg_match ( '/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)\.*\d*[\+\- ](\d\d)$/' , $ ts , $ da ) ) { # TS_POSTGRES } elseif ( preg_match ( '/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)\.*\d* GMT$/' , $ ts , $ da ) ) { # TS_POSTGRES } elseif ( preg_match ( # Day of week '/^[ \t\r\n]*([A-Z][a-z]{2},[ \t\r\n]*)?' . # dd Mon yyyy '\d\d?[ \t\r\n]*[A-Z][a-z]{2}[ \t\r\n]*\d{2}(?:\d{2})?' . # hh:mm:ss '[ \t\r\n]*\d\d[ \t\r\n]*:[ \t\r\n]*\d\d[ \t\r\n]*:[ \t\r\n]*\d\d/S' , $ ts ) ) { # TS_RFC2822, accepting a trailing comment. # See http://www.squid-cache.org/mail-archive/squid-users/200307/0122.html / r77171 # The regex is a superset of rfc2822 for readability $ strtime = strtok ( $ ts , ';' ) ; } elseif ( preg_match ( '/^[A-Z][a-z]{5,8}, \d\d-[A-Z][a-z]{2}-\d{2} \d\d:\d\d:\d\d/' , $ ts ) ) { # TS_RFC850 $ strtime = $ ts ; } elseif ( preg_match ( '/^[A-Z][a-z]{2} [A-Z][a-z]{2} +\d{1,2} \d\d:\d\d:\d\d \d{4}/' , $ ts ) ) { # asctime $ strtime = $ ts ; } else { throw new TimestampException ( __METHOD__ . ": Invalid timestamp - $ts" ) ; } if ( ! $ strtime ) { $ da = array_map ( 'intval' , $ da ) ; $ da [ 0 ] = "%04d-%02d-%02dT%02d:%02d:%02d.00+00:00" ; $ strtime = call_user_func_array ( "sprintf" , $ da ) ; } try { if ( $ strtime === 'unixmicro' ) { $ final = DateTime :: createFromFormat ( 'U.u' , $ ts , new DateTimeZone ( 'GMT' ) ) ; } else { $ final = new DateTime ( $ strtime , new DateTimeZone ( 'GMT' ) ) ; } } catch ( Exception $ e ) { throw new TimestampException ( __METHOD__ . ': Invalid timestamp format.' , $ e -> getCode ( ) , $ e ) ; } if ( $ final === false ) { throw new TimestampException ( __METHOD__ . ': Invalid timestamp format.' ) ; } $ this -> timestamp = $ final ; }
Set the timestamp to the specified time, or the current time if unspecified.

Parse the given timestamp into either a DateTime object or a Unix timestamp,
and then store it.

@param string|bool $ts Timestamp to store, or false for now
@throws TimestampException
Set the timestamp to the specified time or the current time if unspecified .