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): arrayReturns 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", $date));
?>
以上例程会输出：
Array
(
[year] => 2009
[month] => 1
[day] => 6
[hour] => 13
[minute] => 0
[second] => 0
[fraction] =>
[warning_count] => 0
[warnings] => Array
(
)
[error_count] => 0
[errors] => Array
(
)
[is_localtime] => 1
[zone_type] => 1
[zone] => 3600
[is_dst] =>
)
add a note
User Contributed Notes 2 notes
Archetrix ¶
7 years ago
For use in Versions prior V5.3:
<?php
if (!function_exists('date_parse_from_format')) {
function date_parse_from_format($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 ....
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));
备份地址：http://www.lvesu.com/blog/php/function.date-parse-from-format.php