PHP checkdate() Function

The checkdate() function validates a Gregorian date. It checks whether the given month, day, and year correspond to a valid date.

Syntax

checkdate(int $month, int $day, int $year): bool

Parameters

• month: The month is between 1 and 12 inclusive.
• day: The day is within the allowed number of days for the given month. Leap years are taken into consideration.
• year: The year is between 1 and 32767 inclusive.

Return Value

Returns true if the date given is valid; otherwise returns false.

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Related Functions

• date() - Format a local time/date
• mktime() - Get Unix timestamp for a date