International PHP Conference 2019 - Spring Edition

date_parse_from_format

(PHP 5 >= 5.3.0, PHP 7)

date_parse_from_formatGet 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.

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

add a note add a note

User Contributed Notes 2 notes

up
20
Archetrix
4 years ago
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 ....
up
0
gilles dot migliori at gmail dot com
4 days ago
$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));
To Top