date_parse_from_format

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

date_parse_from_format — Get 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

DateTime::createFromFormat() - 根据给定的格式解析日期时间字符串
checkdate() - 验证一个格里高里日期

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 ....