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phpoopdatetimeobject
John Mc
John Mc

Reputation: 411

PHP DateTime using Static Object vs New Object

What are the advantages and disadvantages of each method? In which case should I create a new object and when should I use the static call? Is DateTime an exception?

In this case the method call for format() seems to work for both.

Both the $dateObj and the $dateStatic work similarly in this case:

<?php
$raw = '22. 11. 1968';

$dateObj1 = new DateTime ();
$dateObj2= $dateObj1->createFromFormat('d. m. Y', $raw);
echo 'Start date: ' . $dateObj2->format('Y-m-d') . "\n";

$dateStatic = DateTime::createFromFormat('d. m. Y', $raw);
echo 'Start date: ' . $dateStatic->format('Y-m-d') . "\n";

?>

Upvotes: 0

Views: 762

Answers (1)

Jason Byrne
Jason Byrne

Reputation: 1619

The static method is preferable. It will have slightly better performance. Your first method is creating a new DateTime object and then immediately replacing it with a new DateTime object. Serves no purpose.

Upvotes: 1

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