Find array key value from another key of array in php

Question

I want to find one key of array value in another key in the same array.

Following is my array output.

Array
(
    [0] => Array
        (
            [id] => 1187
            [user_id] => 168            
            [content] => Thanks a lot man            
            [item_id] => 1182
            [secondary_item_id] => 1186

        )

    [1] => Array
        (
            [id] => 1186
            [user_id] => 222
            [content] => Great Post
            [item_id] => 1182
            [secondary_item_id] => 1182

        )

    [2] => Array
        (
            [id] => 1183
            [user_id] => 185
            [content] => Amazing first post
            [item_id] => 1182
            [secondary_item_id] => 1182
         )

    [3] => Array
        (
            [id] => 1184
            [user_id] => 179
            [content] => Wonder Post
            [item_id] => 1182
            [secondary_item_id] => 1182
         )

    [4] => Array
        (
            [id] => 1185
            [user_id] => 168
            [content] => Rocking Thanks
            [item_id] => 1182
            [secondary_item_id] => 1183

        )

)

Here you can see id & secondary_item_id key in array, So I want to find which array id is used in secondary_item_id key of array or how can i search id key of array is used in secondary_item_id key in array.

For example.. you can see 'Great Post' id key is used in 'Thanks a lot man' secondary_item_id key of array. So i want to search which array key id is used in secondary_item_id key of array.

I have tried using following way but not working.

$commentData = array();

foreach ($commentQuery as $key => $value) {
     if(array_search($value['id'], array_column($commentQuery, 'secondary_item_id'))){
                echo "list Found".$value['id'];
     }else{
                echo "list not  Found".$value['id'];
    }
}

It's only return list not Found1187 .

Answer 1

i hope this works for you

$ch=true;
foreach ($commentQuery as $key => $value) {
    foreach ($commentQuery as $key2 => $value2) {
      if($value2['id']==$value['secondary_item_id']){
        $ch=false;
        echo "list Found ".$value['id']." in array key ".$key2;
        break;
      }
    }
     if($ch){
      echo "list not  Found".$value['id'];
     }
    $ch=true;
}

Answer 2

Try this:-only single foreach loop using

$search_column variable is out of foreach because every time this sentence execute and your code execute slowly

$search_column = array_column($commentQuery, 'secondary_item_id');
foreach ($commentQuery as $key => $value) {
    $search = null;
    $search = array_search($value['id'], $search_column);
    if (gettype($search) == 'integer') {
        echo "list Found" . $value['id'];
    } else {
        echo "list not  Found" . $value['id'];
    }
    echo "<br>";
}