date_parse_from_format

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

date_parse_from_formatGet info about given date formatted according to the specified format

说明

date_parse_from_format ( string $format , string $datetime ) : array

Returns associative array with detailed info about given date/time.

参数

format

Format accepted by DateTime::createFromFormat().

datetime

String representing the date/time.

返回值

Returns associative array with detailed info about given date/time.

更新日志

版本 说明
7.2.0 The zone element of the returned array represents seconds instead of minutes now, and its sign is inverted. For instance -120 is now 7200.

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] => 3600
    [is_dst] => 
)

参见

User Contributed Notes

gilles dot migliori at gmail dot com 15-Oct-2018 08:48
$date = "10 October 2018 19:30 pm";
print_r (date_parse_from_format("j F Y G:i a", $date));

Output:

Array (
    [year]          => 2018
    [month]         => 10
    [day]           => 10
    [hour]          => 31
    [minute]        => 30
    [second]        => 0
    [fraction]      =>
    [warning_count] => 1
    [warnings]      => Array (
                        [24] => The parsed time was invalid
                    )
    [error_count]   => 0
    [errors]        => Array ( )
    [is_localtime]  =>
)

19:30 pm is invalid, 24-hour format of an hour can't be used with am/pm

must be replaced with:

$date = "10 October 2018 19:30";
print_r (date_parse_from_format("j F Y G:i", $date));

or:

$date = "10 October 2018 7:30 pm";
print_r (date_parse_from_format("j F Y g:i a", $date));
Archetrix 08-Sep-2014 08:18
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 ....