D'abord j'aimerais remercier @rudie pour sa réponse et le raffinement de @jeremy de sa réponse.
J'avais besoin d'une version un peu plus flexible qui pourrait gérer jQueryUI Datepicker avec le plugin TimePicker. J'ai également eu besoin de travailler avec le caractère d'échappement \ backslash pour gérer les formats de temps impairs que les utilisateurs entrent, tels que H\h i\m\i\n. Voici ma solution basée sur les réponses précédentes que j'ai implémentées dans mon Connections Business Directory WordPress plugin.
Il correspond plus étroitement à la fonctionnalité de date_parse_from_format() et DateTime::createFromFormat().
Espérons que cela aide quelqu'un!
<?php
/**
* Class cnDate
*/
class cnDate {
/**
* Date format characters and their name and regex structure.
*
* @access public
* @since 8.6.4
*
* @var array
*/
protected static $keys = array(
'Y' => array('year', '\d{4}'), // Year with 4 Digits
'y' => array('year', '\d{2}'), // Year with 2 Digits
'm' => array('month', '\d{2}'), // Month with leading 0
'n' => array('month', '\d{1,2}'), // Month without the leading 0
'M' => array('month', '[A-Z][a-z]{2}'), // Month ABBR 3 letters
'F' => array('month', '[A-Z][a-z]{2,8}'), // Month Name
'd' => array('day', '\d{2}'), // Day with leading 0
'j' => array('day', '\d{1,2}'), // Day without leading 0
'D' => array('day', '[A-Z][a-z]{2}'), // Day ABBR 3 Letters
'l' => array('day', '[A-Z][a-z]{5,8}'), // Day Name
'h' => array('hour', '\d{2}'), // Hour 12h formatted, with leading 0
'H' => array('hour', '\d{2}'), // Hour 24h formatted, with leading 0
'g' => array('hour', '\d{1,2}'), // Hour 12h formatted, without leading 0
'G' => array('hour', '\d{1,2}'), // Hour 24h formatted, without leading 0
'i' => array('minute', '\d{2}'), // Minutes with leading 0
's' => array('second', '\d{2}'), // Seconds with leading 0
'u' => array('hour', '\d{1,6}'), // Microseconds
'a' => array('meridiem', '[ap]m'), // Lowercase ante meridiem and Post meridiem
'A' => array('meridiem', '[AP]M'), // Uppercase ante meridiem and Post meridiem
);
/**
* Create a regex used to parse the supplied datetime format.
*
* @access public
* @since 8.6.4
*
* @param string $format The datetime format.
*
* @return string
*/
private static function getFormatRegex($format) {
$keys = self::$keys;
// 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] . ')';
} elseif ('\\' == $char || '!' == $char) {
/*
* No need to add the date format escaping character to the regex since it should not exist in the
* supplied datetime string. Including it would cause the preg_match to fail.
*/
//$regex .= $char;
} else {
$regex .= preg_quote($char);
}
}
return '#^' . $regex . '$#';
}
/**
* PHP 5.2 does not have a version of @see date_parse_from_format(), this is a mostly PHP 5.2 compatible version.
*
* @link http://stackoverflow.com/a/14196482/5351316
*
* @access public
* @since 8.6.4
*
* @param string $format The datetime format.
* @param string $date The datetime string to parse.
*
* @return array
*/
public static function parseFromFormat($format, $date) {
/** Setup the default values to be returned, matching @see date_parse_from_format() */
$dt = array(
'year' => FALSE,
'month' => FALSE,
'day' => FALSE,
'hour' => FALSE,
'minute' => FALSE,
'second' => FALSE,
'fraction' => FALSE,
'warning_count' => 0,
'warnings' => array(),
'error_count' => 0,
'errors' => array(),
'is_localtime' => FALSE,
'zone_type' => 0,
'zone' => 0,
'is_dst' => '',
);
// Now try to match it.
if (preg_match(self::getFormatRegex($format), $date, $matches)) {
foreach ($matches as $k => $v) {
// Remove unwanted indexes from resulting preg_match.
if (is_int($k)) {
unset($matches[ $k ]);
}
// Year, month, day, hour, minute, second and fraction should be coerced from string to int.
if (in_array($k, array('year', 'month', 'day', 'hour', 'minute', 'second', 'fraction'))
&& is_numeric($v)) {
$matches[ $k ] = (int) $v;
} elseif ('month' === $k) {
$parsed = date_parse($v);
$matches[ $k ] = (int) $parsed['month'];
} elseif ('day' === $k) {
$parsed = date_parse($v);
$matches[ $k ] = (int) $parsed['day'];
}
}
} else {
$dt['error_count'] = 1;
$dt['errors'][] = 'Invalid date supplied.'; // @todo match error string from date_parse_from_format()
}
return wp_parse_args($matches, $dt);
}
/**
* PHP 5.2 does not have a version of @see DateTime::createFromFormat(), this is a mostly PHP 5.2 compatible version.
*
* @link http://bordoni.me/date_parse_from_format-php-5-2/
*
* @access public
* @since 8.6.4
*
* @param string $format The datetime format.
* @param string $date The datetime string to parse.
*
* @return false|DateTime Instance of DateTime, false on failure.
*/
public static function createFromFormat($format, $date) {
$keys = self::$keys;
$pos = strpos($format, '!');
$chars = str_split($format);
// Setup default datetime values based on time now or Unix epoch based on if `!` if present in $format.
if (FALSE !== $pos) {
$datetime = array(
'year' => '1970',
'month' => '01',
'day' => '01',
'hour' => '00',
'minute' => '00',
'second' => '00',
'fraction' => '000000',
);
} else {
/** @link http://stackoverflow.com/a/38334226/5351316 */
list($usec, $sec) = explode(' ', microtime());
$datetime = array(
'year' => date('Y', $sec),
'month' => date('m', $sec),
'day' => date('d', $sec),
'hour' => date('H', $sec),
'minute' => date('i', $sec),
'second' => date('s', $sec),
'fraction' => substr($usec, 2, 6),
);
}
$parsed = self::parseFromFormat($format, $date);
foreach ($chars as $n => $char) {
$lastChar = isset($chars[ $n - 1 ]) ? $chars[ $n - 1 ] : '';
$skipCurrent = '\\' == $lastChar;
if (! $skipCurrent && isset($keys[ $char ])) {
// Existing value exists in supplied parsed date.
if ($parsed[ $keys[ $char ][0] ]) {
/*
* Replace default datetime interval with the parsed datetime interval only if
* an `!` was found within the supplied $format and its position is
* greater than the current $format character position.
*/
if (! (FALSE !== $pos && $pos > $n)) {
$datetime[ $keys[ $char ][0] ] = $parsed[ $keys[ $char ][0] ];
}
}
}
}
// Ensure the datetime integers are correctly padded with leading zeros.
$datetime['month'] = str_pad($datetime['month'], 2, '0', STR_PAD_LEFT);
$datetime['day'] = str_pad($datetime['day'], 2, '0', STR_PAD_LEFT);
$datetime['hour'] = str_pad($datetime['hour'], 2, '0', STR_PAD_LEFT);
$datetime['minute'] = str_pad($datetime['minute'], 2, '0', STR_PAD_LEFT);
$datetime['second'] = str_pad($datetime['second'], 2, '0', STR_PAD_LEFT);
// Parse the $datetime into a string which can be parsed by DateTime().
$formatted = strtr('year-month-day hour:minute:second.fraction', $datetime);
// Sanity check to make sure the datetime is valid.
if (! strtotime($formatted)) {
return FALSE;
}
// Return a new DateTime instance.
return new DateTime($formatted);
}
}
Est-ce que 'strtotime()' fonctionne pas? – Michael