date_parse_from_format

(PHP 5 >= 5.3.0, PHP 7)

date_parse_from_format — Get info about given date formatted according to the specified format

说明

array date_parse_from_format ( string $format , string $date )

Returns associative array with detailed info about given date.

参数

format: Format accepted by DateTime::createFromFormat() .
date: String representing the date.

返回值

Returns associative array with detailed info about given date.

范例

Example #1 date_parse_from_format() example

  <?php
$date  =  "6.1.2009 13:00+01:00" ;
 print_r ( date_parse_from_format ( "j.n.Y H:iP" ,  $date ));
 ?>

以上例程会输出：

Array
(
    [year] => 2009
    [month] => 1
    [day] => 6
    [hour] => 13
    [minute] => 0
    [second] => 0
    [fraction] => 
    [warning_count] => 0
    [warnings] => Array
        (
        )    [error_count] => 0
    [errors] => Array
        (
        )    [is_localtime] => 1
    [zone_type] => 1
    [zone] => -60
    [is_dst] => 
)

参见

DateTime::createFromFormat() - Returns new DateTime object formatted according to the specified format
checkdate() - 验证一个格里高里日期

用户评论:

[#1] Archetrix [2014-09-08 08:18:48]

For use in Versions prior V5.3:

<?php if (!function_exists('date_parse_from_format')) { function date_parse_from_format($format, $date) { // reverse engineer date formats $keys = array( 'Y' => array('year', '\d{4}'), 'y' => array('year', '\d{2}'), 'm' => array('month', '\d{2}'), 'n' => array('month', '\d{1,2}'), 'M' => array('month', '[A-Z][a-z]{3}'), 'F' => array('month', '[A-Z][a-z]{2,8}'), 'd' => array('day', '\d{2}'), 'j' => array('day', '\d{1,2}'), 'D' => array('day', '[A-Z][a-z]{2}'), 'l' => array('day', '[A-Z][a-z]{6,9}'), 'u' => array('hour', '\d{1,6}'), 'h' => array('hour', '\d{2}'), 'H' => array('hour', '\d{2}'), 'g' => array('hour', '\d{1,2}'), 'G' => array('hour', '\d{1,2}'), 'i' => array('minute', '\d{2}'), 's' => array('second', '\d{2}') ); // convert format string to regex $regex = ''; $chars = str_split($format); foreach ($chars AS $n => $char) { $lastChar = isset($chars[$n - 1]) ? $chars[$n - 1] : ''; $skipCurrent = '\\' == $lastChar; if (!$skipCurrent && isset($keys[$char])) { $regex .= '(?P<' . $keys[$char][0] . '>' . $keys[$char][1] . ')'; } else if ('\\' == $char) { $regex .= $char; } else { $regex .= preg_quote($char); } } $dt = array(); $dt['error_count'] = 0; // now try to match it if (preg_match('#^' . $regex . '$#', $date, $dt)) { foreach ($dt AS $k => $v) { if (is_int($k)) { unset($dt[$k]); } } if (!checkdate($dt['month'], $dt['day'], $dt['year'])) { $dt['error_count'] = 1; } } else { $dt['error_count'] = 1; } $dt['errors'] = array(); $dt['fraction'] = ''; $dt['warning_count'] = 0; $dt['warnings'] = array(); $dt['is_localtime'] = 0; $dt['zone_type'] = 0; $dt['zone'] = 0; $dt['is_dst'] = ''; return $dt; } } ?>

Not my invention though. I found it here: http://stackoverflow.com/questions/6668223/php-date-parse-from-format-alternative-in-php-5-2

Thought this might be a good place to keep a copy in case someone stumbles upon the same problem facing outdated PHP versions on customer servers ....