PHP checkdate() Function Usage and Example

PHP Date & Time Function Manual

Definition and usage

The checkdate() function accepts the month, day, and year of the date as parameters and verifies whether it is Gregorian.

　Check the legality of the date composed of parameters. It will be considered valid if each parameter is correctly defined.

Syntax

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

Parameter

Return value

PHP checkdate() function returns a boolean value. If the given date is valid, this value istrue;If invalid, it isfalse.

PHP version

This function was originally in PHP version4introduced and can be used in all higher versions.

Online example

The following examples demonstratecheckDate()Function usage-

<?php
　　　var_dump(checkdate(11, 07,　1989));
　　　var_dump(checkdate(02,　31,　2008));
　　　
　　　$bool = (checkdate(06, 03,　1889));
　　　print($bool);
　　　print("\n");
　　　print("result: ".checkdate(13,　30,　2005));
?>

Output result

bool(true)
bool(false)
1
result:

Online example

In this example, we try to verify the date of a leap year-

<?php
　　　var_dump(checkdate(02,　30,　2004));
　　　var_dump(checkdate(02,　28,　2008));　　　
　　　var_dump(checkdate(05,　31,　2020));
　　　var_dump(checkdate(06,　31,　2020));
?>

Output result

bool(false)
bool(true)
bool(true)
bool(false)

Online example

The following example verifies the date12/12/2005Is it Gregorian calendar-

<?php
　　　$bool = checkdate(12,　12,　2005);
　　　if($bool){
　　　　　　print("Valid date");
　　　}else{
　　　　　　print("Invalid date");
　　　}
?>

Output result

Valid on the given date