MediaWiki  1.28.1
ConvertibleTimestamp.php
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1 <?php
35  private static $formats = [
36  TS_UNIX => 'U',
37  TS_MW => 'YmdHis',
38  TS_DB => 'Y-m-d H:i:s',
39  TS_ISO_8601 => 'Y-m-d\TH:i:s\Z',
40  TS_ISO_8601_BASIC => 'Ymd\THis\Z',
41  TS_EXIF => 'Y:m:d H:i:s', // This shouldn't ever be used, but is included for completeness
42  TS_RFC2822 => 'D, d M Y H:i:s',
43  TS_ORACLE => 'd-m-Y H:i:s.000000', // Was 'd-M-y h.i.s A' . ' +00:00' before r51500
44  TS_POSTGRES => 'Y-m-d H:i:s',
45  ];
46 
51  public $timestamp;
52 
59  public function __construct( $timestamp = false ) {
60  if ( $timestamp instanceof DateTime ) {
61  $this->timestamp = $timestamp;
62  } else {
63  $this->setTimestamp( $timestamp );
64  }
65  }
66 
76  public function setTimestamp( $ts = false ) {
77  $m = [];
78  $da = [];
79  $strtime = '';
80 
81  // We want to catch 0, '', null... but not date strings starting with a letter.
82  if ( !$ts || $ts === "\0\0\0\0\0\0\0\0\0\0\0\0\0\0" ) {
83  $uts = time();
84  $strtime = "@$uts";
85  } elseif ( preg_match( '/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)$/D', $ts, $da ) ) {
86  # TS_DB
87  } elseif ( preg_match( '/^(\d{4}):(\d\d):(\d\d) (\d\d):(\d\d):(\d\d)$/D', $ts, $da ) ) {
88  # TS_EXIF
89  } elseif ( preg_match( '/^(\d{4})(\d\d)(\d\d)(\d\d)(\d\d)(\d\d)$/D', $ts, $da ) ) {
90  # TS_MW
91  } elseif ( preg_match( '/^(-?\d{1,13})(\.\d+)?$/D', $ts, $m ) ) {
92  # TS_UNIX
93  $strtime = "@{$m[1]}"; // http://php.net/manual/en/datetime.formats.compound.php
94  } elseif ( preg_match( '/^\d{2}-\d{2}-\d{4} \d{2}:\d{2}:\d{2}.\d{6}$/', $ts ) ) {
95  # TS_ORACLE // session altered to DD-MM-YYYY HH24:MI:SS.FF6
96  $strtime = preg_replace( '/(\d\d)\.(\d\d)\.(\d\d)(\.(\d+))?/', "$1:$2:$3",
97  str_replace( '+00:00', 'UTC', $ts ) );
98  } elseif ( preg_match(
99  '/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(?:\.*\d*)?Z?$/',
100  $ts,
101  $da
102  ) ) {
103  # TS_ISO_8601
104  } elseif ( preg_match(
105  '/^(\d{4})(\d{2})(\d{2})T(\d{2})(\d{2})(\d{2})(?:\.*\d*)?Z?$/',
106  $ts,
107  $da
108  ) ) {
109  # TS_ISO_8601_BASIC
110  } elseif ( preg_match(
111  '/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)\.*\d*[\+\- ](\d\d)$/',
112  $ts,
113  $da
114  ) ) {
115  # TS_POSTGRES
116  } elseif ( preg_match(
117  '/^(\d{4})\-(\d\d)\-(\d\d) (\d\d):(\d\d):(\d\d)\.*\d* GMT$/',
118  $ts,
119  $da
120  ) ) {
121  # TS_POSTGRES
122  } elseif ( preg_match(
123  # Day of week
124  '/^[ \t\r\n]*([A-Z][a-z]{2},[ \t\r\n]*)?' .
125  # dd Mon yyyy
126  '\d\d?[ \t\r\n]*[A-Z][a-z]{2}[ \t\r\n]*\d{2}(?:\d{2})?' .
127  # hh:mm:ss
128  '[ \t\r\n]*\d\d[ \t\r\n]*:[ \t\r\n]*\d\d[ \t\r\n]*:[ \t\r\n]*\d\d/S',
129  $ts
130  ) ) {
131  # TS_RFC2822, accepting a trailing comment.
132  # See http://www.squid-cache.org/mail-archive/squid-users/200307/0122.html / r77171
133  # The regex is a superset of rfc2822 for readability
134  $strtime = strtok( $ts, ';' );
135  } 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 ) ) {
136  # TS_RFC850
137  $strtime = $ts;
138  } 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 ) ) {
139  # asctime
140  $strtime = $ts;
141  } else {
142  throw new TimestampException( __METHOD__ . ": Invalid timestamp - $ts" );
143  }
144 
145  if ( !$strtime ) {
146  $da = array_map( 'intval', $da );
147  $da[0] = "%04d-%02d-%02dT%02d:%02d:%02d.00+00:00";
148  $strtime = call_user_func_array( "sprintf", $da );
149  }
150 
151  try {
152  $final = new DateTime( $strtime, new DateTimeZone( 'GMT' ) );
153  } catch ( Exception $e ) {
154  throw new TimestampException( __METHOD__ . ': Invalid timestamp format.', $e->getCode(), $e );
155  }
156 
157  if ( $final === false ) {
158  throw new TimestampException( __METHOD__ . ': Invalid timestamp format.' );
159  }
160 
161  $this->timestamp = $final;
162  }
163 
171  public static function convert( $style = TS_UNIX, $ts ) {
172  try {
173  $ct = new static( $ts );
174  return $ct->getTimestamp( $style );
175  } catch ( TimestampException $e ) {
176  return false;
177  }
178  }
179 
186  public static function now( $style = TS_MW ) {
187  return static::convert( $style, time() );
188  }
189 
200  public function getTimestamp( $style = TS_UNIX ) {
201  if ( !isset( self::$formats[$style] ) ) {
202  throw new TimestampException( __METHOD__ . ': Illegal timestamp output type.' );
203  }
204 
205  $output = $this->timestamp->format( self::$formats[$style] );
206 
207  if ( ( $style == TS_RFC2822 ) || ( $style == TS_POSTGRES ) ) {
208  $output .= ' GMT';
209  }
210 
211  if ( $style == TS_MW && strlen( $output ) !== 14 ) {
212  throw new TimestampException( __METHOD__ . ': The timestamp cannot be represented in ' .
213  'the specified format' );
214  }
215 
216  return $output;
217  }
218 
222  public function __toString() {
223  return $this->getTimestamp();
224  }
225 
233  public function diff( ConvertibleTimestamp $relativeTo ) {
234  return $this->timestamp->diff( $relativeTo->timestamp );
235  }
236 
243  public function setTimezone( $timezone ) {
244  try {
245  $this->timestamp->setTimezone( new DateTimeZone( $timezone ) );
246  } catch ( Exception $e ) {
247  throw new TimestampException( __METHOD__ . ': Invalid timezone.', $e->getCode(), $e );
248  }
249  }
250 
256  public function getTimezone() {
257  return $this->timestamp->getTimezone();
258  }
259 
266  public function format( $format ) {
267  return $this->timestamp->format( $format );
268  }
269 }
Library for creating, parsing, and converting timestamps.
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Definition: hooks.txt:2102
setTimezone($timezone)
Set the timezone of this timestamp to the specified timezone.
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Definition: globals.txt:10
const TS_RFC2822
RFC 2822 format, for E-mail and HTTP headers.
Definition: defines.php:21
DateTime $timestamp
The actual timestamp being wrapped (DateTime object).
static now($style=TS_MW)
Get the current time in the given format.
const TS_ISO_8601
ISO 8601 format with no timezone: 1986-02-09T20:00:00Z.
Definition: defines.php:28
diff(ConvertibleTimestamp $relativeTo)
Calculate the difference between two ConvertibleTimestamp objects.
const TS_UNIX
Unix time - the number of seconds since 1970-01-01 00:00:00 UTC.
Definition: defines.php:6
static $formats
Standard gmdate() formats for the different timestamp types.
getTimezone()
Get the timezone of this timestamp.
__construct($timestamp=false)
Make a new timestamp and set it to the specified time, or the current time if unspecified.
const TS_EXIF
An Exif timestamp (YYYY:MM:DD HH:MM:SS)
Definition: defines.php:37
format($format)
Format the timestamp in a given format.
getTimestamp($style=TS_UNIX)
Get the timestamp represented by this object in a certain form.
const TS_ISO_8601_BASIC
ISO 8601 basic format with no timezone: 19860209T200000Z.
Definition: defines.php:52
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Definition: hooks.txt:1046
setTimestamp($ts=false)
Set the timestamp to the specified time, or the current time if unspecified.
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
const TS_POSTGRES
Postgres format time.
Definition: defines.php:47
static convert($style=TS_UNIX, $ts)
Convert a timestamp string to a given format.
const TS_ORACLE
Oracle format time.
Definition: defines.php:42
const TS_DB
MySQL DATETIME (YYYY-MM-DD HH:MM:SS)
Definition: defines.php:16