How to fetch specific elements from an array and create a new array based on the comparison of an array key's value?

manpreet 2 years ago

Short answer:

function packed_element($id) {
foreach($test_result_data as $k => $v)
  if ($v->test_pack_id === $id)
    return $v;
}

But if you can manage the code that generate the array I suggest you to simply use dictionary array over simple one, that have your id as key. So you can referrer to your element directly. For example you can generate an array like this:

Array
(
    [8ed32f6479a0169db3531d3366996d35] => Array
        (
            [test_pack_id] => 8ed32f6479a0169db3531d3366996d35
            [test_pack_name] => CPT Free Samples
            [test_pack_desc] => This package contains a free sample test of 30 minutes containing 30 questions from - Fundamentals of accounting, Mercantile Law, General Economics and Quantitative Aptitude. This is perfect to discover the beauty of online exam preparation.
            [test_pack_type_id] => 7
            [test_pack_image] => 
            [test_pack_validity_year] => 0
            [test_pack_validity_month] => 0
            [test_pack_validity_days] => 3
            [test_pack_plan] => free
            [test_pack_price] => 0.00
            [test_pack_no_tests] => 0
            [test_pack_publish] => yes
            [test_pack_code] => 
            [test_pack_sold] => 22
            [test_pack_created_staff_id] => ff8d4a5ea6bf11dce105aa2fa7b959b8
            [test_pack_updated_staff_id] => ff8d4a5ea6bf11dce105aa2fa7b959b8
            [test_pack_created_date] => 1337014879
            [test_pack_updated_date] => 1376886700
            [test_pack_purchase_date] => 1364454118
            [test_details] => Array
                (
                    [0] => Array
                        (
                            [test_id] => 159
                            [test_name] => CPT Sample Test
                            [test_max_score] => 120.000
                            [test_no_questions] => 30
                            [test_attempt] => 15
                            [test_not_attempt] => 7
                            [avg_test_user_time_used] => 00:04:39 Hr
                            [top_score] => 46.00
                            [avg_score] => 3
                            [lower_score] => 0.00
                        )

                )

        
                                                            

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