Ada banyak tipe array dalam php, misalnya :
// TIPE 1
$array=[
'cat1' => 2,
'cat2' => 1,
'cat3' => 1
];
//atau
//TIPE 2
$array=[
'cat1'=>2,
'cat2'=>1,
'cat3'=>['id1'=>1,'idt2'=>2],
'cat4'=>['id1'=>3,'idt2'=>4,'idq3'=>2],
];
// atau
//TIPE 3
$array=["cat1","cat2","cat3","cat4"];Untuk membedakan tipe array tersebut, begini caranya
function check_array($array){
$arr=$array;
if(is_array($arr)){
if(isset($arr[0])){
if(count($arr) !== count($arr, COUNT_RECURSIVE)){
return "ARRAY TIPE 2";
}else{
return "ARRAY TIPE 3";
};
}else{
rsort($arr);
if(is_array($arr[0])){
return "ARRAY TIPE 2";
}else{
return "ARRAY TIPE 1";
}
}
}else{
return "NOT ARRAY 0";
}
};<?php
//USAGE
$array=["cat1","cat2","cat3","cat4"];
echo check_array($array);