Check Associative 2d Array - php

Question

I have the following declaration of array
Array
(
[name] => 1
[callrate] => 1
[maxcalls] => 100000
[mintime] => 5
[maxtime] => 16
[skillexps] => Array
(
[0] => 1
[1] => 2
)
)
How can I check the the array contains the array. I tried the
function is_multi($a) {
foreach ($a as $v) {
if (is_array($v))
{
return "has array";
break;
}
break;
}
return 'only value';
}
But this only gives 'only value'. I need to check the If Associative Array is two dimensional.

Answer 1

Why your existing code doesn't work?
Because you're looking every element of array to check is it an array or not using foreach() and is_array()? if not then break; so when it checks for name element the value is not an array, it is just a integer so it immediately break; and goes out of the foreach()loop and returns only value but when I removed the extra break; from your code it works fine because then it checks for each and every element of your array to verify that is it contains an array or not . I've also added a good looking way how to check array is multi-dimensional or not. Hope this helps :)
function is_multi($a) {
foreach ($a as $v) {
if (is_array($v))
{
return "has array";
break;
}
// removed extra break; from here
}
return 'only value';
}
To check array is multi-dimensional or not? I'll do this way,
<?php
function is_multi(array $array) {
return count($array) !== count($array, COUNT_RECURSIVE);
}
$array = array
(
'name' => 1,
'callrate' => 1,
'maxcalls' => 100000,
'mintime' => 5,
'maxtime' => 16,
'skillexps' => array
(
1,
2
)
);
echo is_multi($array);
?>
DEMO: https://3v4l.org/LANsh

Answer 2

If you are trying to check whether the array is 2d or not , you can use array filter like below
$data=array
(
'name' => 1,
'callrate' => 1,
'maxcalls' => 100000,
'mintime' => 5,
'maxtime' => 16,
'skillexps' =>array(1,2)
);
$filteredItems = array_filter($data, function($elem) {
return is_array($elem);
});
if(count($filteredItems)>0){
echo "multi dimensional";
}
else{
echo "1 dimensional";
}
If you are interested to check every keys,you can use array_map with closure function like below
$data=array
(
'name' => 1,
'callrate' => 1,
'maxcalls' => 100000,
'mintime' => 5,
'maxtime' => 16,
'skillexps' => array
(
0 => 1,
1 => 2
)
);
$array = array_map(function ($a) {
return is_array($a) ? "has array" : "only value";
}, $data);
print_r($array);
output
Array
(
[name] => only value
[callrate] => only value
[maxcalls] => only value
[mintime] => only value
[maxtime] => only value
[skillexps] => has array
)
If you want to check entire array is multidimensional or not then just add one line below
$multi=array_search('has array', $array) ? "is multi " : "is not multi";
echo $multi;