Fonctions de date/heure PHP
PHP Date/Heure Introduction
Les fonctions date/heure vous permettent d'obtenir la date et l'heure du serveur sur lequel votre script PHP s'exécute. Vous pouvez ensuite utiliser les fonctions de date/heure pour formater la date et l'heure de plusieurs manières.
Remarque : Ces fonctions dépendent des paramètres régionaux de votre serveur. N'oubliez pas de tenir compte de l'heure d'été et des années bissextiles lorsque vous travaillez avec ces fonctions.
Installation
Les fonctions de date/heure PHP font partie du noyau PHP. Aucune installation n'est requise pour utiliser ces fonctions.
Configuration d'exécution
Le comportement de ces fonctions est affecté par les paramètres dans php.ini :
| Name | Description | Default | PHP Version |
|---|---|---|---|
| date.timezone | The default timezone (used by all date/time functions) | "" | PHP 5.1 |
| date.default_latitude | The default latitude (used by date_sunrise() and date_sunset()) | "31.7667" | PHP 5.0 |
| date.default_longitude | The default longitude (used by date_sunrise() and date_sunset()) | "35.2333" | PHP 5.0 |
| date.sunrise_zenith | The default sunrise zenith (used by date_sunrise() and date_sunset()) | "90.83" | PHP 5.0 |
| date.sunset_zenith | The default sunset zenith (used by date_sunrise() and date_sunset()) | "90.83" | PHP 5.0 |
Fonctions de date/heure PHP
| Function | Description |
|---|---|
| checkdate() | Validates a Gregorian date |
| date_add() | Adds days, months, years, hours, minutes, and seconds to a date |
| date_create_from_format() | Returns a new DateTime object formatted according to a specified format |
| date_create() | Returns a new DateTime object |
| date_date_set() | Sets a new date |
| date_default_timezone_get() | Returns the default timezone used by all date/time functions |
| date_default_timezone_set() | Sets the default timezone used by all date/time functions |
| date_diff() | Returns the difference between two dates |
| date_format() | Returns a date formatted according to a specified format |
| date_get_last_errors() | Returns the warnings/errors found in a date string |
| date_interval_create_from_date_string() | Sets up a DateInterval from the relative parts of the string |
| date_interval_format() | Formats the interval |
| date_isodate_set() | Sets the ISO date |
| date_modify() | Modifies the timestamp |
| date_offset_get() | Returns the timezone offset |
| date_parse_from_format() | Returns an associative array with detailed info about a specified date, according to a specified format |
| date_parse() | Returns an associative array with detailed info about a specified date |
| date_sub() | Subtracts days, months, years, hours, minutes, and seconds from a date |
| date_sun_info() | Returns an array containing info about sunset/sunrise and twilight begin/end, for a specified day and location |
| date_sunrise() | Returns the sunrise time for a specified day and location |
| date_sunset() | Returns the sunset time for a specified day and location |
| date_time_set() | Sets the time |
| date_timestamp_get() | Returns the Unix timestamp |
| date_timestamp_set() | Sets the date and time based on a Unix timestamp |
| date_timezone_get() | Returns the time zone of the given DateTime object |
| date_timezone_set() | Sets the time zone for the DateTime object |
| date() | Formats a local date and time |
| getdate() | Returns date/time information of a timestamp or the current local date/time |
| gettimeofday() | Returns the current time |
| gmdate() | Formats a GMT/UTC date and time |
| gmmktime() | Returns the Unix timestamp for a GMT date |
| gmstrftime() | Formats a GMT/UTC date and time according to locale settings |
| idate() | Formats a local time/date as integer |
| localtime() | Returns the local time |
| microtime() | Returns the current Unix timestamp with microseconds |
| mktime() | Returns the Unix timestamp for a date |
| strftime() | Formats a local time and/or date according to locale settings |
| strptime() | Parses a time/date generated with strftime() |
| strtotime() | Parses an English textual datetime into a Unix timestamp |
| time() | Returns the current time as a Unix timestamp |
| timezone_abbreviations_list() | Returns an associative array containing dst, offset, and the timezone name |
| timezone_identifiers_list() | Returns an indexed array with all timezone identifiers |
| timezone_location_get() | Returns location information for a specified timezone |
| timezone_name_from_ abbr() | Returns the timezone name from abbreviation |
| timezone_name_get() | Returns the name of the timezone |
| timezone_offset_get() | Returns the timezone offset from GMT |
| timezone_open() | Creates new DateTimeZone object |
| timezone_transitions_get() | Returns all transitions for the timezone |
| timezone_version_get() | Returns the version of the timezonedb |
Constantes de date/heure prédéfinies PHP
| Constant | Description |
|---|---|
| DATE_ATOM | Atom (example: 2019-01-18T14:13:03+00:00) |
| DATE_COOKIE | HTTP Cookies (example: Fri, 18 Jan 2019 14:13:03 UTC) |
| DATE_ISO8601 | ISO-8601 (example: 2019-01-18T14:13:03+0000) |
| DATE_RFC822 | RFC 822 (example: Fri, 18 Jan 2019 14:13:03 +0000) |
| DATE_RFC850 | RFC 850 (example: Friday, 18-Jan-19 14:13:03 UTC) |
| DATE_RFC1036 | RFC 1036 (example: Friday, 18-Jan-19 14:13:03 +0000) |
| DATE_RFC1123 | RFC 1123 (example: Fri, 18 Jan 2019 14:13:03 +0000) |
| DATE_RFC2822 | RFC 2822 (example: Fri, 18 Jan 2019 14:13:03 +0000) |
| DATE_RFC3339 | Same as DATE_ATOM (since PHP 5.1.3) |
| DATE_RFC3339_EXTENDED | RFC3339 Extended format (since PHP 7.0.0) (example: 2019-01-18T16:34:01.000+00:00) |
| DATE_RSS | RSS (Fri, 18 Jan 2019 14:13:03 +0000) |
| DATE_W3C | World Wide Web Consortium (example: 2019-01-18T14:13:03+00:00) |
| SUNFUNCS_RET_TIMESTAMP | Timestamp (since PHP 5.1.2) |
| SUNFUNCS_RET_STRING | Hours:minutes (example: 09:41) (since PHP 5.1.2) |
| SUNFUNCS_RET_DOUBLE | Hours as a floating point number (example: 9.75) (since PHP 5.1.2) |