find array key is equal to value in specific array?

Question

Hi All already i asked one question regarding array based key equal to value in array. Here my previous link please check enter link description here

If i follow the above link am not getting correct data. in_array finding all columns , but i want to find in room_no only one column in a array. If i use in_array(1,$singleArray) it will finding all columns in array,i need only key is room_no equal to 1.

If you see above output in array [room_no] found 2 times in that array[0], array1. if i use in_array(1,$myArrayOutPut){ } it will taking array[3],array[4] state key also 1 .so taking this all arrays where key is 1. But i need room_no is 1

if i give in_array(1,$singleArray) it will finding all keys those value is 1,i want find only with room_no key in my array. — Niranjan
– Niranjan, Commented Dec 19, 2018 at 11:04
I think that was covered in my answer to the original question and pointed out as the problem with the answer you accepted. — Nigel Ren
– Nigel Ren, Commented Dec 19, 2018 at 11:12
I believe it will be much clearer if you create a sample array and explain what value you are looking for — Andreas
– Andreas, Commented Dec 19, 2018 at 11:12
Please, show the inputs, the code you are running, and the outputs. Then tell us what is wrong with the outputs — RiggsFolly
– RiggsFolly, Commented Dec 19, 2018 at 11:12

Sitepose · Accepted Answer · 2018-12-19 11:38:29Z

Kindly see below code to access multidimensional array with for each loop and subsequently check the elements with switch case. :

$passenger_info = array(0=> array("room_no"=>1,"passenger_type"=>"adult"), 1=>array("room_no"=>1,"passenger_type"=>"children"), 2=> array("room_no"=>1,"passenger_type"=>"adult"), 3=> array("room_no"=>2,"passenger_type"=>"children"), 4=> array("room_no"=>2,"passenger_type"=>"adult"));
echo "<pre>";
print_r($passenger_info);
echo "</pre>";


echo "<hr>";
$selected_room = 2;

$adult_count = 0;
$child_count = 0;
foreach($passenger_info as $key => $value) {
    if($value["room_no"] == $selected_room){
        switch ($value["passenger_type"]){
            case "adult":
                $adult_count++;
                break;
            case "children":
                $child_count++;
                break;
            default:
                break;
        }

    }

}

echo "Adults : ".$adult_count;
echo "<br>";
echo "Children : ".$child_count;

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