How to repeat an array in PHP?

Question

$arr = array('1st', '1st');

The above $arr has 2 items , I want to repeat $arr so that it's populated with 4 items

Is there a single call in PHP?

Answer 1

This is a more general answer. In PHP 5.6+ you can use the "splat" operator (...) to repeat the array an arbitrary number of times:

array_merge(...array_fill(0, $n, $arr));

Where $n is any integer.