如何使用DateTime :: createFromFormat（）获取日期？

Question

I want to get day, month, and year from a date but it doesn't work. I always get an error:

Fatal error: Call to a member function format() on a non-object in printtest.php on line 4

This is my printtest.php code. I got an error. How to fix this? Check live demo here.

<?php
    $dob = $_POST['dob'];
    $date = DateTime::createFromFormat("Y-m-d", '$dob');
    $year1 = $date->format("Y");
    $day1 = $date->format("d");
    $mon3 = $date->format("m");
    echo $year1;
?>

Answer 1

Remove the single quotes around your dob variable as Alessandro said, but also, according to your sample site, the input field is in the format d-m-Y, and the format you are passing is Y-m-d.

So change

$date = DateTime::createFromFormat("Y-m-d", '$dob');

to be

$date = DateTime::createFromFormat("d-m-Y", $dob);