Validity of php verification time

Php verifies the validity of a date by using a built-in function, namely, the checkdate function. The following describes the definition and usage of the checkdate function.

Checkdate definition and usage

The checkdate () function verifies a greaguri date. If the specified value is valid, the function returns true; otherwise, false.

The date is valid in the following cases:

The month value ranges from 1 to 12.

The value of Day is within the range of days that a given month should have. A leap year has been taken into account.
 
Year between and includes 1 to 32767

Checkdate syntax

Checkdate (month, day, year)

Month is required. The specified month.

Day is required. Specified day.

Year is required. Specified year.

Example:

<? Phpvar_dump (checkdate (2000, 2003); var_dump (checkdate (2004,); var_dump (checkdate ));

The result will be output:

Bool (true)
Bool (false)
Bool (true)

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