Which of the following statements is NOT a valid way to crea

Which of the following statements is NOT a valid way to create a timestamp named $birthdate that represents December 2, 1969?

a.

$birthdate = mktime(0, 0, 0, 12, 2, 1969);

b.

$birthdate = mktime(12, 2, 1969);

c.

$birthdate = strtotime(\'1969-12-02\');

d.

$birthdate = strtotime(\'12/02/1969\');

Solution

SYNTAX
=> mktime(hour,minute,second,month,day,year,is_dst);
a. $birthdate = mktime(0, 0, 0, 12, 2, 1969); is VALID
b. $birthdate = mktime(12, 2, 1969); is INVALID

SYNTAX
=> int strtotime ( string $time [, int $now] );
c. $birthdate = strtotime(\'1969-12-02\');
d. $birthdate = strtotime(\'12/02/1969\');
are VALID