Date and Time

• Introduzione
• Installazione/Configurazione
  • Installazione
  • Configurazione di Runtime
  • Tipi di risorse
• Costanti predefinite
• List of Supported Timezones
  • Africa
  • America
  • Antarctica
  • Arctic
  • Asia
  • Atlantic
  • Australia
  • Europe
  • Indian
  • Pacific
  • Others
• Date/Time Funzioni
  • checkdate — Verifica una data/orario gragoriana/o
  • date_create — Returns new DateTime object
  • date_date_set — Sets the date
  • date_default_timezone_get — Gets the default timezone used by all date/time functions in a script
  • date_default_timezone_set — Sets the default timezone used by all date/time functions in a script
  • date_format — Returns date formatted according to given format
  • date_isodate_set — Sets the ISO date
  • date_modify — Alters the timestamp
  • date_offset_get — Returns the daylight saving time offset
  • date_parse — Returns associative array with detailed info about given date
  • date_sun_info — Returns an array with information about sunset/sunrise and twilight begin/end
  • date_sunrise — Returns time of sunrise for a given day and location
  • date_sunset — Returns time of sunset for a given day and location
  • date_time_set — Sets the time
  • date_timezone_get — Return time zone relative to given DateTime
  • date_timezone_set — Sets the time zone for the DateTime object
  • date — Formatta una data o orario locale
  • getdate — Riceve informazioni su data/orario
  • gettimeofday — Riceve l'orario attuale
  • gmdate — Formatta una data/ora GMT/UTC
  • gmmktime — Riceve l'UNIX timestamp per una data GMT
  • gmstrftime — Formatta una data/ora GMT/UTC secondo i parametri locali
  • idate — Format a local time/date as integer
  • localtime — Riceve l'orario locale
  • microtime — Restituisce l'attuale UNIX timestamp con i microsecondi
  • mktime — Restituisce la UNIX timestamp per una data
  • strftime — Formatta una data/orario locale accordandola/o alle impostazioni locali according to locale settings
  • strptime — Parse a time/date generated with strftime
  • strtotime — Analizza le descrizioni testuali di datetime in Inglese nell'UNIX timestamp
  • time — Restituisce l'attuale UNIX timestamp
  • timezone_abbreviations_list — Returns associative array containing dst, offset and the timezone name
  • timezone_identifiers_list — Returns numerically index array with all timezone identifiers
  • timezone_name_from_abbr — Returns the timezone name from abbrevation
  • timezone_name_get — Returns the name of the timezone
  • timezone_offset_get — Returns the timezone offset from GMT
  • timezone_open — Returns new DateTimeZone object
  • timezone_transitions_get — Returns all transitions for the timezone

add a note User Contributed Notes
Date/Time

zoe at monkeehouse dot com
25-Oct-2008 01:52

Should you want to convert between HH:MM:SS and plain seconds like in MySQL, these functions should do the trick:

<?php
function time_to_sec($time) {
    $hours = substr($time, 0, -6);
    $minutes = substr($time, -5, 2);
    $seconds = substr($time, -2);

    return $hours * 3600 + $minutes * 60 + $seconds;
}

function sec_to_time($seconds) {
    $hours = floor($seconds / 3600);
    $minutes = floor($seconds % 3600 / 60);
    $seconds = $seconds % 60;

    return sprintf("%d:%02d:%02d", $hours, $minutes, $seconds);
}
?>

JonathanCross.com
25-Jul-2008 11:13

<?php
// A demonstration of the new DateTime class and the
// fact that it fixes dates before 1970 and after 2038.
?>
<h2>PHP 2038 date bug demo (php version <?=phpversion()?>)</h1>
<div style='float:left;margin-right:3em;'>
<h3>OLD Buggy date()</h3>
<?
for ( $i = 1900; $i < 2050; $i++) {
  $datep = "$i-01-01";
  print "  Trying: $datep ... ";
  print date("F j, Y", strtotime($datep));
  print "<BR>";
}
?></div>
<div style='float:left;'>
  <h3>NEW DateTime Class (v 5.2+)</h3><?
  for ( $i = 1900; $i < 2050; $i++) {
    $datep = "$i-01-01";
    $date = new DateTime($datep);
    print "  Trying: $datep ... ";
    print $date->format('F j, Y');
    print "<BR>";
  }
?></div>

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Introduzione Estensioni correlate a calendari ed eventi

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Last updated: Fri, 18 Jul 2008