respect-validation/docs/validators/DateTime.md

DateTime

• DateTime()
• DateTime(string $format)

Validates whether an input is a date/time or not.

The $format argument should be in accordance to DateTime::format(). See more in the Formats section.

When a $format is not given its default value is Y-m-d H:i:s.

v::dateTime()->assert('2009-01-01');
// Validation passes successfully

Also accepts strtotime() values:

v::dateTime()->assert('now');
// Validation passes successfully

And DateTimeInterface instances:

v::dateTime()->assert(new DateTime());
// Validation passes successfully

v::dateTime()->assert(new DateTimeImmutable());
// Validation passes successfully

You can pass a format when validating strings:

v::dateTime('Y-m-d')->assert('01-01-2009');
// → "01-01-2009" must be a date/time in the "2005-12-30" format

Format has no effect when validating DateTime instances.

Message template for this validator includes {{sample}}.

Formats

Note that this validator validates whether the input matches a given DateTime::format() format and NOT if the input can be parsed with a given DateTimeImmutable::createFromFormat() format. That makes the validation stricter but offers some limitations.

The way DateTimeImmutable::createFromFormat() parses an input allows for many different conversions. Overall DateTimeImmutable::createFromFormat() tend to be more lenient than DateTime::format(). This might be what you desire, and you may want to use Satisfies to create a custom validation.

$input = '2014-04-12T23:20:50.052Z';

v::satisfies(fn($input) => is_string($input) && DateTime::createFromFormat(DateTime::RFC3339_EXTENDED, $input))
    ->assert($input);
// Validation passes successfully

v::dateTime(DateTime::RFC3339_EXTENDED)->assert($input);
// → "2014-04-12T23:20:50.052Z" must be a date/time in the "2005-12-30T01:02:03.000+00:00" format

Templates

DateTime::TEMPLATE_STANDARD

Mode	Template
default	{{subject}} must be a date/time
inverted	{{subject}} must not be a date/time

DateTime::TEMPLATE_FORMAT

Mode	Template
default	{{subject}} must be a date/time in the {{sample}} format
inverted	{{subject}} must not be a date/time in the {{sample}} format

Template placeholders

Placeholder	Description
subject	The validated input or the custom validator name (if specified).
sample

Categorization

• Date and Time

Changelog

Version	Description
3.0.0	Templates changed
2.3.0	Validation became a lot stricter
2.2.4	v::dateTime('z') is no longer supported.
2.0.0	Created

See Also

• Between
• BetweenExclusive
• Date
• DateTimeDiff
• LeapDate
• LeapYear
• Satisfies
• Time