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

示例 #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

add a note

User Contributed Notes 2 notes

down

Archetrix ¶

7 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 ....

down

gilles dot migliori at gmail dot com ¶

3 years 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));

add a note

官方地址：https://www.php.net/manual/en/function.date-parse-from-format.php

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PHP官方手册 - 互联网笔记

date_parse_from_format

说明

参数

返回值

更新日志

范例

参见

User Contributed Notes 2 notes