How Can I Reliably Compare Dates with Non-Standard Formats in PHP?

Comparing Dates in PHP with Custom Formats

When comparing dates that are not in standard formats, such as '03_01_12' and '31_12_11', the strtotime() function may not provide accurate results. To overcome this, you can use the DateTime class to specify a custom date format.

<?php

// Create a custom date format
$format = "d_m_y";

// Create DateTime objects for the given dates
$date1 = \DateTime::createFromFormat($format, "03_01_12");
$date2 = \DateTime::createFromFormat($format, "31_12_11");

// Compare the DateTime objects
var_dump($date1 > $date2);

?>

In this code, the DateTime::createFromFormat() function takes two parameters: the custom format and the date string. It creates DateTime objects that represent the dates in the given format. The comparison operator > checks if the first date is greater than the second date.

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