/**
* Checks if the given date is a real date or datepart.
* Returns false if a expected datepart is missing or a datepart exceeds its possible border.
* But the check will only be done for the expected dateparts which are given by format.
* If no format is given the standard dateformat for the actual locale is used.
* f.e. 30.February.2007 will return false if format is 'dd.MMMM.YYYY'
*
* @param string|array|\Zend\Date\Date $date Date to parse for correctness
* @param string $format (Optional) Format for parsing the date string
* @param string|\Zend\Locale\Locale $locale (Optional) Locale for parsing date parts
* @return boolean True when all date parts are correct
*/
public static function isDate($date, $format = null, $locale = null)
{
if (!is_string($date) && !is_numeric($date) && !$date instanceof Date && !is_array($date)) {
return false;
}
if ($format !== null && $format != 'ee' && $format != 'ss' && $format != 'GG' && $format != 'MM' && $format != 'EE' && $format != 'TT' && Locale::isLocale($format)) {
$locale = $format;
$format = null;
}
$locale = Locale::findLocale($locale);
if ($format === null) {
$format = Format::getDateFormat($locale);
} else {
if (self::$_options['format_type'] == 'php' && !defined($format)) {
$format = Format::convertPhpToIsoFormat($format);
}
}
$format = self::_getLocalizedToken($format, $locale);
if (!is_array($date)) {
try {
$parsed = Format::getDate($date, array('locale' => $locale, 'date_format' => $format, 'format_type' => 'iso', 'fix_date' => false));
} catch (\Zend\Locale\Exception $e) {
// Date can not be parsed
return false;
}
} else {
$parsed = $date;
}
if ((strpos($format, 'Y') !== false or strpos($format, 'y') !== false) and !isset($parsed['year'])) {
// Year expected but not found
return false;
}
if (strpos($format, 'M') !== false and !isset($parsed['month'])) {
// Month expected but not found
return false;
}
if (strpos($format, 'd') !== false and !isset($parsed['day'])) {
// Day expected but not found
return false;
}
if ((strpos($format, 'H') !== false or strpos($format, 'h') !== false) and !isset($parsed['hour'])) {
// Hour expected but not found
return false;
}
if (strpos($format, 'm') !== false and !isset($parsed['minute'])) {
// Minute expected but not found
return false;
}
if (strpos($format, 's') !== false and !isset($parsed['second'])) {
// Second expected but not found
return false;
}
// Set not given dateparts
if (isset($parsed['hour']) === false) {
$parsed['hour'] = 12;
}
if (isset($parsed['minute']) === false) {
$parsed['minute'] = 0;
}
if (isset($parsed['second']) === false) {
$parsed['second'] = 0;
}
if (isset($parsed['month']) === false) {
$parsed['month'] = 1;
}
if (isset($parsed['day']) === false) {
$parsed['day'] = 1;
}
if (isset($parsed['year']) === false) {
$parsed['year'] = 1970;
}
if (self::isYearLeapYear($parsed['year'])) {
$parsed['year'] = 1972;
} else {
$parsed['year'] = 1971;
}
$date = new self($parsed, null, $locale);
$timestamp = $date->mktime($parsed['hour'], $parsed['minute'], $parsed['second'], $parsed['month'], $parsed['day'], $parsed['year']);
if ($parsed['year'] != $date->date('Y', $timestamp)) {
// Given year differs from parsed year
return false;
}
if ($parsed['month'] != $date->date('n', $timestamp)) {
// Given month differs from parsed month
return false;
}
if ($parsed['day'] != $date->date('j', $timestamp)) {
// Given day differs from parsed day
return false;
}
if ($parsed['hour'] != $date->date('G', $timestamp)) {
// Given hour differs from parsed hour
return false;
}
if ($parsed['minute'] != $date->date('i', $timestamp)) {
// Given minute differs from parsed minute
return false;
}
if ($parsed['second'] != $date->date('s', $timestamp)) {
// Given second differs from parsed second
return false;
}
return true;
}
/**
* test convertPhpToIso
* expected boolean
*/
public function testConvertPhpToIso()
{
$this->assertSame('dd', Format::convertPhpToIsoFormat('d'));
$this->assertSame('EE', Format::convertPhpToIsoFormat('D'));
$this->assertSame('d', Format::convertPhpToIsoFormat('j'));
$this->assertSame('EEEE', Format::convertPhpToIsoFormat('l'));
$this->assertSame('eee', Format::convertPhpToIsoFormat('N'));
$this->assertSame('SS', Format::convertPhpToIsoFormat('S'));
$this->assertSame('e', Format::convertPhpToIsoFormat('w'));
$this->assertSame('D', Format::convertPhpToIsoFormat('z'));
$this->assertSame('ww', Format::convertPhpToIsoFormat('W'));
$this->assertSame('MMMM', Format::convertPhpToIsoFormat('F'));
$this->assertSame('MM', Format::convertPhpToIsoFormat('m'));
$this->assertSame('MMM', Format::convertPhpToIsoFormat('M'));
$this->assertSame('M', Format::convertPhpToIsoFormat('n'));
$this->assertSame('ddd', Format::convertPhpToIsoFormat('t'));
$this->assertSame('l', Format::convertPhpToIsoFormat('L'));
$this->assertSame('YYYY', Format::convertPhpToIsoFormat('o'));
$this->assertSame('yyyy', Format::convertPhpToIsoFormat('Y'));
$this->assertSame('yy', Format::convertPhpToIsoFormat('y'));
$this->assertSame('a', Format::convertPhpToIsoFormat('a'));
$this->assertSame('a', Format::convertPhpToIsoFormat('A'));
$this->assertSame('B', Format::convertPhpToIsoFormat('B'));
$this->assertSame('h', Format::convertPhpToIsoFormat('g'));
$this->assertSame('H', Format::convertPhpToIsoFormat('G'));
$this->assertSame('hh', Format::convertPhpToIsoFormat('h'));
$this->assertSame('HH', Format::convertPhpToIsoFormat('H'));
$this->assertSame('mm', Format::convertPhpToIsoFormat('i'));
$this->assertSame('ss', Format::convertPhpToIsoFormat('s'));
$this->assertSame('zzzz', Format::convertPhpToIsoFormat('e'));
$this->assertSame('I', Format::convertPhpToIsoFormat('I'));
$this->assertSame('Z', Format::convertPhpToIsoFormat('O'));
$this->assertSame('ZZZZ', Format::convertPhpToIsoFormat('P'));
$this->assertSame('z', Format::convertPhpToIsoFormat('T'));
$this->assertSame('X', Format::convertPhpToIsoFormat('Z'));
$this->assertSame('yyyy-MM-ddTHH:mm:ssZZZZ', Format::convertPhpToIsoFormat('c'));
$this->assertSame('r', Format::convertPhpToIsoFormat('r'));
$this->assertSame('U', Format::convertPhpToIsoFormat('U'));
$this->assertSame('HHmmss', Format::convertPhpToIsoFormat('His'));
}
