Sometimes, it may be necessary to pass an array to another file via GET (although not normally a recommended practice). To do this, you need to pass the array as a URL safe string or as a serialized array. You can do this as below.
$test = [];
$test[1] = 'orange';
$test[2] = 'apple';
$test[3] = 'tomato';
$test[4] = 'grapes';
$test[5] = 'melon';
$test[6] = 'strawberry';
// print_r($test) will output
Array
(
[1] => orange
[2] => apple
[3] => tomato
[4] => grapes
[5] => melon
[6] => strawberry
)
// print_r(serialize($test)) will output
a:6:{i:1;s:6:"orange";i:2;s:5:"apple";i:3;s:6:"tomato";i:4;s:6:"grapes";i:5;s:5:"melon";i:6;s:10:"strawberry";}
// print_r(unserialize($test)) will output
Array
(
[1] => orange
[2] => apple
[3] => tomato
[4] => grapes
[5] => melon
[6] => strawberry
)