I've stumbled upon something weird and I don't understand why it works that way.
I have an array of numbers, they are all unique:
$array = [
98602142989816970,
98602142989816971,
98602142989816980,
98602142989816981,
98602142989816982,
98602142989816983,
98602142989820095,
98602142989820096,
98602142989822060,
98602142989822061,
];
var_dump($array);
array(10) {
[0]=>
int(98602142989816970)
[1]=>
int(98602142989816971)
[2]=>
int(98602142989816980)
[3]=>
int(98602142989816981)
[4]=>
int(98602142989816982)
[5]=>
int(98602142989816983)
[6]=>
int(98602142989820095)
[7]=>
int(98602142989820096)
[8]=>
int(98602142989822060)
[9]=>
int(98602142989822061)
}
If I do print_r(array_unique($array)); everything is fine, I get:
Array
(
[0] => 98602142989816970
[1] => 98602142989816971
[2] …